[6mm to 10mm]

Inner hole DIA.
(D1 - D2).
5mm to 10mm 6mm to 10mm
8mm to 10mm 10mm 10mm to 10mm
Notice:
1. The shooting and different displays may cause the color of the item in the picture a little different from the real thing.
2. The measurement allowed error is +/- 1-3mm.