The kryptonite kryptoflex 30ft features a flexible braided steel cable with durable pvc coating to protect paint work for use with any u lock to secure front wheel multiple bikes andor accessories 10mm thick braided steel cable is hard to cut and is protected by a durable vinyl covering that guards your bikes paintwork against accidental damage double looped ends work well in conjunction with other u locks padlocks or disc locks to securely affix any auxillary components to your bike