The E Z Back System, models EZL2001, EZL2002, and EZL2003, is a back support that can be mounted on sling back wheelchairs, commodes, driver or automobile passenger seats, or chairs. The system includes two laterals, a Velcro back, and a front panel with lumbar support. The system's lateral supports are independent of one another, so they are interchangeable from side to side. The system's lumbar support is also adjustable, so the system can give the user needed lateral or pelvic support. OPTIONS: Replacement components; tray (black or clear). SIZES: Small (EZL2001), medium (EZL2002), or large (EZL2003). DIMENSIONS (HxWxD): 12 x 4.5 x 5.5 inches (EZL2001), 14.5 x 6.25 x 5.5 inches (EZL2002), 14.5 x 6.5 x 7.25 inches (EZL2003).