Material specification: 316L surgical stainless steel
Ring gauge x internal diameter:
7mm x 10, 12, 15, 19, 22, 25mm
8mm x 10, 12, 15, 19, 22, 25mm
10mm x 10, 12, 15, 19, 22, 25mm
12mm x 10, 12, 15, 19, 22, 25mm
15mm x 10, 12, 15, 19, 22, 25mm