S3 Balance is constructed of high density steel with a working capacity of 600 pounds. It features adapting, non-skid feet to promote stability without marking floors; a 41-inch base for maximum safety and portability; streching pegs for advanced training with 5 hooks for band attachment; 270-degree curved handlebar. The S3 is also a portable transfer tool that improves user strength and virtually eliminates multi-person transfers/hydraulic lifts. When not in use, devices stack like shopping carts.