The Synergy Shape Back Medium 19 H is ergonomically contoured, and features a high-density foam base and a four-way stretch cover, among other things. Features Ergonomically contoured High-density base foam with a soft viscoelastic upper layer Four-way stretch cover overlaps back pan The new streamlined, 2-Point, Quick Release Hardware that Includes Tilt Rated Bolt On Hardware Quick-release levers Four-point, bolt-on hardware for use with TRU-Balance Power Positioning or Synergy Seat Frame Systems Accommodates an array of headrests and accessories Benefits Helps promote good posture Offers conforming comfort without allowing bottom out Prevents back cushion from shifting position Allows for fast installation and easy depth and angle adjustment, even while occupied Allows the client to maintain an independent, active lifestyle Provides easy, solid attachment to back canes Provides support for a wide range of body types Able to meet the needs of a wide range of clients Specifications Model Synergy Shape Back Medium 19 H Code E2613/E2614 Positioning Wheelchair Back, Posterior Weight Capacity 250 lbs. Width 14 , 16 , 18 , 20 and 22 Height 19 Adjustability Angle adjustment of 33 degrees through 57 degrees 2 of width adjustment 2 of Depth Adjustment Available with 2-Point Hardware 4 Depth Adjustment Available with 4-Point Hardware Height adjustable 1 Each / Each