These will fit vintage Proshift / Precision Billet / Paul and most other derailleurs including Shimano. These are all made in Canada and anodized in house. These have a metal shielded ball bearing for easier spinning.
ID is for 5mm bolts.
Total width including caps is 8mm.
Gold side caps only.
8 grams per pulley.
Currently for sale on Toronto Cycles website and will be added to Precision Billet site shortly.