Operator Remote Channel 1 & 2 Jobst Ultrasheer 15 20 Matern Material: Plastic Style:Pair (Left & Right) Material: Plastic 18 X 16 * The contoured design combined with the simple operation of the ISOFLO© Memory Control unit offers provides a new level of postural control and stability that has never been achieved in an air cushion * The contoured design positions the pelvis back in the wheelchair and centers the individual comfortably in the middle of cushion * The ISOFLO Memory Control unit locks air into each of the four compartments providing stability by minimizing side to side and front to back motion * Adjustable to individual Operator Remote Channels 1 & 2 * Optional Accesorie for the following items: CHAT2763 CHAT2786K CHAT2760K CHAT2788K CHAT2793K CHAT2797K CHAT2791K CHAT2795K *