Hybrid Elite Cushion Dual Valve 17ø w x 17ø d Washing Equipment Must be replaced after one Select Ear:Left Ear Must be replaced after one month of use Propass product will stay dispersed in liquids without settling out or clumping and does not lose its protein value when baked Cover with encased comfort foam is machine washable * Combines the suberb skin protection and shape matching ability of ROHO DRY FLOATATION© with the stability of Jay© base technology * This new cushion design allows for improved position and function while maintaining optimal immersion and envelopment of both the ischial tuberosities and greater trochanters * Cushion insert matches the individual s shape by adjusting the amount of air * Air cushion insert is easily cleaned with soap and water