Roho Contour Select Cushion 20 W x 18 D Opthalmoscopes Heads Sensor: capacitive pressure sensor Ships via truck Sensor: capacitive pressure sensor * Specification Description Mains Power: 110~120 V 50 60 Hz Power Consumption: 1000W Product Weight: 15 lb (7 kg) Shipping Weight: 21 lb (8 kg) Dimensions: 13 L x 8 W x 16 H (33 cm x 20 cm x 41 cm) Electrical Safety Class: Class 1 Type B Safety Tests: Conforms to UL 60601 1 certified to Can CSA C222 No s shape and weight * Cushion is adjustable to changes in individual 20 X 18 * 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