Eggcrate Bed Pad 4 x33 x72 Commodes Simple to operate portable device Style:1 Pair (Left & Right) Simple to operate portable device for pain management Combines TENS and Interferential treatment for patients needing stronger therapy Comes complete with carrying case two sets of lead wires 9 volt battery AC adapter manual and pack of four self adhesive reusable electrodes Power Source: Standard 9 volt battery or AC adapter Dimensions: 4 Black powder coated chip and wear resistant finish * Each upright telescopes up to 13 and locks into (9) height positions with fail safe ball tip locking pin * Designed to easily fold to save space * Unit is only 10 wide when folded * Height adjustable from 28 to 41 * 400 lb 4 x 33 x 72 * Provides extraordinary comfort and benefits circulation * Gives more even support * Color Off White