Hydrocollator Heat Pack Oversize 15 x 24 Jobst Fast Fit 15 20 Knee High the consumer Oxygen Masks the consumer Combines the skin soft tissue protection and Shape Fitting Technology© of a ROHO DRY FLOATATION© cushion with stability from a contoured foam base * This cushion design allows for improved pelvic alignment and stability for improved position and function while maintaining optimal immersion and envelopment of both the ischial tuberosities and greater trochanters * The ROHO shape fitting cushion insert provides critical pressure redistribution around the pelvis area giving the individual skin soft tissue protection that ROHO is known for * Simply adjust the cushion insert to fit the individual Oversize 15 x 24 * Can be immersed in water or microwaved * Provides up to 30 minutes of soothing relief * Durable convenient and economical * Guaranteed for one year *