Stability Trainer Black X Soft Surgical Shoes 8 oz (164 g) Overall Oxygen Masks 8 oz (164 g) Overall length 31 Assembled inspected and packaged in the USA Lifetime warranty covers all parts The Dual Tub Grip has an integrated adjustable locking mechanism that attaches easily to most bathtub walls from 3 to 5 1 4 thick * Simple clamp means no difficult twisting motion during installation * Two textured grab areas at different heights for maximum security and flexibility when entering or exiting the tub * No tools required * Tested to withstand up to 350 lbs It is air filled to provide multiple direction displacement * One side offers rounded points for sensorimotor stimulation and its heavy gauge side walls resist the tendancy to roll the ankle during exercise Shipping Carton Size: 16 L x 14 W x 4 H *Theraband© Stability Trainer is used to improve motor skills and balance particularly among the elderly and for knee back and ankle rehab * Two foam pads of different densities and one air filled cushion allow users to work through progressive levels by standing on a pad * The green Stability Trainer is firm and provides a beginning level of challenge * The blue Stability Trainer is soft and introduces an increased level of challenge to the user * For maximum challenge use the new extra soft black Stability Trainer