Brand New Chair Control Touchpad Replacement for Adec Cascade / Radius Delivery Unit. Replacement part for OEM Part # 39.1045.00 * If your current Controls are not working or are unresponsive, this touchpad assembly will fix your problem! These are Brand New Touchpads that will save you money! As these are reproduction replacement parts, the color shade may differ from each unit. IMPORTANT: The back plate is NOT Included with this Touchpad. See Photos. INCLUDES: Touchpad & 4 Screws