Model YTCS107 Material Aluminum head,heavy-duty steel. Cable size Diameter & length as per custom ordered. Color Blue/green/yellow/others Imprinting Laser-Etch Custom ordered Bar code,Numbering Certification ISO17712 Packing 100pcs/plastic bag 1000pcs/carton Applications Railway cars,truck trailers,containers,international freight,valve lockout Easy to apply Simple, no tool application,break attached shaft and cap And click the two pieces together to lock Remove by bolt cutter, and eye protection is necessary the eyes