Gel Wheelchair Cushion 18 x 16 x 2 (Each) Wander Alarms 5 gallon capacity runs for Style:Right Ear 5 gallon capacity runs for 18 24 hours of operation per filling and the triple wall insulation keeps the reservoir water at a safe temperature * There is an automatic shut off when the reservoir water reaches the minimum level * Has a locking top * The medicine cup allows the use of Vicks VaporSteam or KAZ Inhalant * A large night light provides added convenience particularly in children's rooms * 3 year warranty * This table s convenient flat surface makes it easier for people to eat write letters or do projects while in bed or in a chair * Height Adjustment: 28¨ to 42¨ * Table easily adjusts for left or right hand use and height variation * C style base allows for easier and closer access from a chair * Inside dimensions of the base: 26 W x 15 D * Size: 33 Wide x 20¨ D x 28¨ H * Table Capacity: 50 lbs * Tabletop Dimensions 16 Width by 33 Length * * Secures easily to wheelchair with 12 tie straps * Offering great versatility the Gel U Seat Lite provides comfort to almost all wheelchair users