The worlds first wearable folding lock is here. Designed to be fast and easy to use with rust free components. Sold Secure Silver standard.Key Features:Just 18.9cm in length and 6cm wide with an 85cm circumference when locked,Super lightweight at just 1kg,Hardened Steel Links,Ultra Protected Rivets - Designed to withstand sawing and cutting,Anti-Drilling Cylinder,Rattle Elimination System prevents lock from shaking while riding,.