Wheelchair Back Cushion Adj Tension Fits 16 21 w WC's Impotence Device Model Number: Blood pressure monitor 4012SC Model Number: Blood pressure monitor these tiny babies will boost your confidence since they're almost invisible Fits 16 21 wide wheelchairs 16 high * Perfect solution for patients with mild positioning needs * Versatile back support system that improves patient comfort and posture * 1 thick high density foam pad provides optimal pressure redistribution * Secures directly over wheelchair canes for added strength stability and safety * 5 Adjustment straps featured for multi purpose back support and customization to individual seating needs * Handy back pocket is convenient for carrying keys water bottle medications tissues and more * Breathable cover is fluid resistant and easy to clean and maintain * Cushion folds with the wheelchair for easy transport and storage * Meets flammability standard TB117 * Weight capacity 350 lbs * Warranty 18 months