Confined Space System includes 8 ft (2.4 m) AK105A aluminum tripod with 359108 50 ft (15 m) galvanized 3-way self retracting lifeline, 3590498 mounting bracket and AK020A1 pulley When it comes to confined space entry/rescue, it is essential that equipment operates perfectly and quickly. Lightweight, portable 3M Protecta® Aluminum Tripods are ideal for confined space manhole entry and retrieval. They're easily transported from one location to another and can be set-up by one worker. Attach one or two mechanical devices such as a winch or 3-way self retracting lifeline and you're ready to go. Our tripods are loaded with features such as locking legs, simple detent pin style adjustment, quick-mount mechanical device bracket, safety chain to prevent movement, and skid resistant tread plate soles on feet. Complete confined space system - see individual components for more details 8 ft (2.4 m) 3M Protecta® aluminum tripod (model AK105A) and carrying bag (AK067A) Telescoping adjustable locking legs 3M™ Rebel™ 3-way self retracting lifeline with retrieval winch (model 3591008) 50 ft (15.2 m) 3/16 in (5 mm) galvanized steel cable lifeline Pulley for confined space entry (model AK020A1) Routes winch lifeline Mounting bracket attaches SRL to tripod (model 3590498) Durable and compact design