This is a Yokomo 5.0mm Shim Spacer Set.(ZC-S50A) These shims come in three different thicknesses but all have a 5mm inner diameter and a 8mm outer diameter. Thicknesses included are 0.13mm, 0.25mm and 0.50mm, with twenty shims included in each thickness.
Included are:
- (20) 5.0x8.0x0.13mm
- (20) 5.0x8.0x0.25mm
- (20) 5.0x8.0x0.50mm