Standard Ty-Rap® Self locking nylon Ty-Rap, which incorporates stainless steel locking devices in the head, thus providing a strong and positive grip at any diameter. Features and Benefits Manufactured from versatile nylon 6.6 Oval, low profile head with no sharp edges High strength stainless steel locking device Infinite number of locking positions Easy grip for installation Flammability rating UL94V-2 Approvals UL (file E49405) MIL-S-23190 Standards MIL-S-23190