diff --git a/Appendix-B:-3D-printed-parts.md b/Appendix-B:-3D-printed-parts.md
index 68c3232..131d2b6 100644
--- a/Appendix-B:-3D-printed-parts.md
+++ b/Appendix-B:-3D-printed-parts.md
@@ -1,5 +1,5 @@
 # Buying 3D-printed parts from us
-Not everyone has access to a 3D-printer. That's why we sell kits with everything you need to build a Ploopy Mouse **TODO put link to ploopy.co store here**. Here's why that's great for you:
+Not everyone has access to a 3D-printer. [That's why we sell kits with everything you need to build a Ploopy Trackball](https://www.ploopy.co/product/trackball-full-kit/1?cp=true&sa=true&sbp=false&q=false). Here's why that's great for you:
 
 - You get all of the 3D-printed parts, guaranteed free of manufacturing defects
 - Support material will be broken off for you, so you won't have to worry about breaking your parts while removing supports