The Petzl William TriAct M36TLN carabiner is a safety device for climbing and working at heights. With a breaking load of 27 kN in all directions, it offers optimal strength. Its TriAct self-closing feature makes it easy to use with one hand. It is made of light alloy and has a large opening for easy handling of ropes and equipment. Its pear shape and larger contact area reduce rope wear and make it easier to tie knots. This carabiner is suitable for demanding technical activities and professional users.