Available Size: 01-2130: 27 mm 01-2131: 30 mm 01-2132: 33 mm 01-2133: 36 mm 01-2134: 40 mm 01-2135: 42 mm 01-2136: 45 mm 01-2137: 47 mm 01-2138: 50 mm Life Time Guarantee 100% Quality assured by Complying FDA, CE and ISO Standards from first to last step of Production Medical Grade Supper Quality Raw materials are used to Produce This Product.