Roho Hybrid Elite Cushion Single Valve 15 x15 x4.25 Magnifiers Accuracy: 70 100% The wetness indicator turns Accuracy: 70 100% SERIES 503 MAG 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 Cover with encased comfort foam is machine washable