Summit Viper Climbing Steel Stand w/Summit Rapid Climb Stirrups. Love the flagship Viper SD? The Viper Steel is very similar but constructed with steel instead of aluminum. Great for both bowhunters and rifle hunters it includes an adjustable foam-padded suspended seat Quick Draw cable retention system and RapidClimb Stirrups. Specifications for Summit Viper Climbing Steel Stand: Manufacturer: Summit Color: Brown Width: 20 in Length: 34.5 in Features of Summit Viper Climbing Steel Stand: Summit's Quick Draw cable retention system securely locks the cable in place for fast easy and silent attachment to the tree. RapidClimb Stirrups are comfort-engineered adjustable and designed to keep your boot securely attached to the platform. Stand type: Steel closed-front climber Weight: 29 lbs. Maximum weight limit: 300 lbs. Foot platform channels: Five (5) Platform frame size: 20" W x 34.5" D Seat frame size: 23" W x 36.5" D Seat dimensions: Bottom - 12" W x 18" L x 2.5" D Back - 12" W x 20" H x 1" D Seat type: Foam-padded suspended seat with backrest adjustable height Armpad type: Three (3) 16 armpads with Velcro for front rail and side arms Tree diameter range: 8 -20 Attachment method: Cable Package Contents: Summit Viper Climbing Steel Stand Full-Body Fall Arrest Harness System (FBFAHS) and all necessary hardware Two (2) coated steel climbing cables RapidClimb Stirrups with heel bungee utility strap adjustable backpack straps and umbilical cord Summit SU81137: Viper Climbing Steel Stand w/Summit Rapid Climb Stirrups