Allows the firefighter to attach themself safely to a ladder rung or tower platform. Available in overall length of connections which measures 20 inches. NFPA limites overall length of lanyard from the surface of the belt or harness to the connection of the inside of the connection device to 24 inches. Easy to operate double locking snap hooks are located at each end of the strap. The extra large hook will open to 2.5 inches to accommodate any ladder rung. The small hook is attached to the users belt or harness D ring. Lanyard is made of a new type of webbing constructed with a Kevlar interior for strength and a Nomex exterior for wear and durability. Strength 5000 lbf.