diff --git a/Appendix-D:-Hardware.md b/Appendix-D:-Hardware.md
index 6e23525..34567b7 100644
--- a/Appendix-D:-Hardware.md
+++ b/Appendix-D:-Hardware.md
@@ -15,8 +15,8 @@ First, a complete list of all the hardware you'll need:
 - 2x M3x12mm flat-countersunk machine screws
 - 4x M3x6mm socket cap machine screws
 - 6x heat-set threaded inserts
-- 3x roller bearings
-- 2x metal dowels
+- 3x MR63ZZ roller bearings
+- 2x 3mm x 18mm metal dowels
 - 1x silicone ring
 - 4x friction pads
 - 1x snooker ball
@@ -54,14 +54,15 @@ Here are the critical specifications:
 - Brass, or any other material that transmits heat well
 - 4.8mm installed length
 
-## Roller bearings
+## MR63ZZ roller bearings
 Here are the critical specifications:
 
+- MR63ZZ bearing
 - 3mm inner diameter
 - 6mm outer diameter
 - 2.5mm thickness
 
-## Metal dowels
+## 3mm x 18mm metal dowels
 Here are the critical specifications:
 
 - 3mm diameter