3M Protecta PRO AK105A Confined Space Aluminum Tripod, 8' with Adjustable Legs, Safety Chain, and Skid-Proof Feet, Silver Simple detent pin adjustment in 3 in (76 cm) increments offers quick and easy set-up allowing you to custom fit your work space Prevents movement of the legs when the system is under load providing added support, strength and safety Various winch and 3-way self retracting lifeline configurations and options are available to suit most site requirements for added peace of mind Lightweight and durable aluminum construction is easy to transport, set-up and use and will stand up to the elements for extended longevity 8 ft (24 m) aluminum tripod with adjustable locking legs, safety chain and skid-proof feet