14mm hexagonal links made of 3t manganese steel

DuoCore: new patent-pending hybrid cylinder technology that provides greater safety

Patented hardened oval shaft design

stronger than conventional round tube

15 mm MAX-Performance hardened steel padlock

Double hardened lock design provides added protection against twist attacks

Includes 3 stainless steel keys: 2 new keys in ?I? and one with a high intensity LED to remove the lock in the dark more easily and comfortably

Velcro strips to keep the nylon fabric fixed