The Urban Prime anti-theft chain is made of 10 mm hardened steel rings, guaranteeing maximum strength and long-lasting security. Protect your bike without worrying about scratches, thanks to its nylon coating. You can safely wrap the lock around the frame of your bike or on your vehicle to carry it with you at all times. The dust cover protects the lock and avoids clogging it with dirt and dust, keeping the chain functioning properly over time.