Maximum security wearable chainlock featuring Hiplok’s patented wearable speed buckle fastening which quickly adjusts to fit the waist while riding without being locked to the body. Key Features: Maximum Security – 10mm hardened chain, 12mm hardened shackle,85cm locking circumference fitting waist size 28-44”,Speed Buckle fastening – never locked when worn,Removable, washable sleeve with optional reflective detail,Sold Secure GOLD rated,3 x coded replaceable keys.