Arm strap for knife with verlcro fastener. Made from hard wearing and durable nylon. SeaPro recommend that Arm mounted knifes are used only as part of a multi knife system, and not as the only safety knife worn. At least one knife needs to be reachable by both hands should one every get incapacitated in an emergency. It is an unlikely situation, but it only needs to go wrong once – safety first. Knife not included.