diff --git a/Hardware/readme.md b/Hardware/readme.md
index 47ffda000e4d48926f086d615a2a7ca584fadac3..0a7dcb81cdf35f6c5003a609d4eb54acfd074782 100644
--- a/Hardware/readme.md
+++ b/Hardware/readme.md
@@ -61,7 +61,7 @@ We need to drill two holes to the lids. The hole at front lid will be used for t
 
 ### Bill of Materials
 
-[Table-1](#tabImp): Bill of materials of the implant
+[Table-1](#tabImp): Bill of materials for the implant
 
 |Item No. | Name                                     | Part name                                    | Est. cost per Pc. [€]  | Amount   | Total cost [€]  | 
 |-------- | -------------------                      | ---------                                    | :--------------------: | :------: | :------------:  |
@@ -90,10 +90,18 @@ We need to drill two holes to the lids. The hole at front lid will be used for t
 |1.23     | [Breakaway header (M) (1.27 mm)    ][ay] | [fischer Elektronik, SLVW1055          ][23] | 3.03                   | 2        | 6.06            |
 |1.24     | [Sealing epoxy                     ][az] | [UHU, 63251***                         ][24] | 8.60                   | 1        | 8.60            |
 
+[Table-1](#tabImp): Bill of materials for the lead trajectories
+
+|Item No. | Name                                     | Part name                                     | Est. cost per Pc. [€]  | Amount   | Total cost [€]  | 
+|-------- | -------------------                      | ---------                                     | :--------------------: | :------: | :------------:  |
+|2.1      | Semi-rigid coaxial wire                  | [El Spec group, 14940                  ][50]  | Please ask to manufac. | 2        | -               |
+|2.2      | Heat-shrink tube                         | [El Spec group, 14940                  ][51]  | Please ask to manufac. | 2        | -               |
+|2.3      | [PLA, 3D printing                  ][bc] | [Ultimaker, Ultimaker tough PLA        ][52]  | 47.00                  | 1        | 47.00           |
+|2.4      | [PVA, 3D printing (sup. material)  ][bd] | [Ultimaker, Ultimaker natural PVA      ][53]  | 105.00                 | 1        | 105.00          |
 
 *Please use non-magnetic capacitors.<br>
 **Please do not use the inductors with ferromagnetic core.<br>
-***There is another 2 minute [option][25]. The datasheet (German) can be found [here][ba]. 
+***There is another 2 minute [option][25]. The datasheet (German) can be found [here][a1a]. 
 
 [//]: <> (References for the figures)
 
@@ -102,28 +110,30 @@ We need to drill two holes to the lids. The hole at front lid will be used for t
 [//]: <> (References for datasheets)
 
 [aa]: /Hardware/Implant/Datasheets/cc2652rb.pdf                "Open datasheet"
-[ab]: /Hardware/Implant/Datasheets/cc2640R2_Launchpad.pdf      "Launchpad quick start quide"
-[ac]: /Hardware/Implant/Datasheets/AP9211SA.pdf                "Open datasheet"
-[ad]: /Hardware/Implant/Datasheets/Varta_safety_datasheet.pdf  "Check safety datasheet"
-[ae]: /Hardware/Implant/Datasheets/MMDL101T1-D.PDF             "Open datasheet"
-[af]: /Hardware/Implant/Datasheets/BA595.pdf                   "Open datasheet"
-[ag]: /Hardware/Implant/Datasheets/Diotech_ZPD4.3.pdf          "Open datasheet"
-[ah]: /Hardware/Implant/Datasheets/AVX-E_1003893FT.pdf         "Open datasheet"
-[ai]: /Hardware/Implant/Datasheets/CTS-4300-0013LF.pdf         "Open datasheet"
-[aj]: /Hardware/Implant/Datasheets/1455D601RD.pdf              "Open datasheet"
-[ak]: /Hardware/Implant/Datasheets/RST_Button_434121025816.pdf "Open datasheet"
-[an]: /Hardware/Implant/Datasheets/c4_vjhifreqseries.pdf       "Open datasheet"
-[ao]: /Hardware/Implant/Datasheets/GRM155R61A104KA01_.pdf      "Open datasheet"
-[ap]: /Hardware/Implant/Datasheets/L1_JELF243A-0173.pdf        "Open datasheet"
-[aq]: /Hardware/Implant/Datasheets/L2_L3_maxi.pdf              "Open datasheet"
-[as]: /Hardware/Implant/Datasheets/R2_TNPW060313K3BEEA.pdf     "Open datasheet"
-[at]: /Hardware/Implant/Datasheets/R3_ERJUP3F2701V.pdf         "Open datasheet"
-[au]: /Hardware/Implant/Datasheets/R4_cmp-a.pdf                "Open datasheet"
-[av]: /Hardware/Implant/Datasheets/Header-BLMKG1-36.pdf        "Open datasheet"
-[ay]: /Hardware/Implant/Datasheets/Header-SLV_W_1_055.pdf      "Open datasheet"
-[az]: /Hardware/Implant/Datasheets/UHU_90min.pdf               "Open datasheet"
-[ba]: /Hardware/Implant/Datasheets/UHU.pdf                     "Open datasheet"
-
+[ab]:  /Hardware/Implant/Datasheets/cc2640R2_Launchpad.pdf      "Launchpad quick start quide"
+[ac]:  /Hardware/Implant/Datasheets/AP9211SA.pdf                "Open datasheet"
+[ad]:  /Hardware/Implant/Datasheets/Varta_safety_datasheet.pdf  "Check safety datasheet"
+[ae]:  /Hardware/Implant/Datasheets/MMDL101T1-D.PDF             "Open datasheet"
+[af]:  /Hardware/Implant/Datasheets/BA595.pdf                   "Open datasheet"
+[ag]:  /Hardware/Implant/Datasheets/Diotech_ZPD4.3.pdf          "Open datasheet"
+[ah]:  /Hardware/Implant/Datasheets/AVX-E_1003893FT.pdf         "Open datasheet"
+[ai]:  /Hardware/Implant/Datasheets/CTS-4300-0013LF.pdf         "Open datasheet"
+[aj]:  /Hardware/Implant/Datasheets/1455D601RD.pdf              "Open datasheet"
+[ak]:  /Hardware/Implant/Datasheets/RST_Button_434121025816.pdf "Open datasheet"
+[an]:  /Hardware/Implant/Datasheets/c4_vjhifreqseries.pdf       "Open datasheet"
+[ao]:  /Hardware/Implant/Datasheets/GRM155R61A104KA01_.pdf      "Open datasheet"
+[ap]:  /Hardware/Implant/Datasheets/L1_JELF243A-0173.pdf        "Open datasheet"
+[aq]:  /Hardware/Implant/Datasheets/L2_L3_maxi.pdf              "Open datasheet"
+[as]:  /Hardware/Implant/Datasheets/R2_TNPW060313K3BEEA.pdf     "Open datasheet"
+[at]:  /Hardware/Implant/Datasheets/R3_ERJUP3F2701V.pdf         "Open datasheet"
+[au]:  /Hardware/Implant/Datasheets/R4_cmp-a.pdf                "Open datasheet"
+[av]:  /Hardware/Implant/Datasheets/Header-BLMKG1-36.pdf        "Open datasheet"
+[ay]:  /Hardware/Implant/Datasheets/Header-SLV_W_1_055.pdf      "Open datasheet"
+[az]:  /Hardware/Implant/Datasheets/UHU_90min.pdf               "Open datasheet"
+[a1a]: /Hardware/Implant/Datasheets/UHU.pdf                     "Open datasheet"
+
+[bc]:  /Hardware/Lead_Trajectories/Datasheets/UM220509-Tough-PLA-TDS-RB-v2.10.pdf "Open datasheet"
+[bd]:  /Hardware/Lead_Trajectories/Datasheets/UM200310-Ultimaker_PVA.pdf          "Open datasheet"
 
 [//]: <> (References for external links)
 
@@ -149,6 +159,11 @@ We need to drill two holes to the lids. The hole at front lid will be used for t
 [23]: https://www.fischerelektronik.de/web_fischer/en_GB/connectors/G01/Male%20headers/$catalogue/fischerData/PR/SLV_W1_055/index.xhtml "Open manufacturer website"
 [24]: https://www.uhu.com/en/product-page/epoxy-ultra-strong/63251                                                                  "Open manufacturer website"
 [25]: https://www.uhu.de/de/produkt.62981                                                                                           "Open manufacturer website (DE)" 
+
+[50]: https://www.elspecgroup.de/products/semi-rigid/standard-cable                                                                 "Open manufacturer website"
+[52]: https://ultimaker.com/materials/tough-pla                                                                                     "Open manufacturer website"
+[53]: https://ultimaker.com/materials/pva                                                                                           "Open manufacturer website"
+
 [1a]: https://software-dl.ti.com/lprf/simplelink_cc26x2_latest/docs/ble5stack/ble_user_guide/html/ble-stack-oad/index.html "See documentation"
 [1b]: https://e2e.ti.com/support/wireless-connectivity/zigbee-thread-group/zigbee-and-thread/f/zigbee-thread-forum/843250/cc2652r-cc2652-internal-dc-dc-converter-vs-global-ldo "See discussion"