Bell Horn® Knee Length Anti Embolism Stockings, Medium, Black, 1 Pair Impotence Device * Duplex jack(included) allows a Color:Yellow * Duplex jack(included) allows a second phone to share the same phone outlet 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 17 19 inch length Size: Medium