Cover for Mini Max Cushion 18 x 16 Jobst Opaque 20 30 mmHg Knee 16 H x 30 W Underpads 16 H x 30 W x 30 L * Firm foam covered in fire retardant triple laminated vinyl fabrics that is stong antibacterial and mildew resistant * Econoglide transfer board is moisture proof * 1 2 thick high density linear plastic * Excellent for use while toileting or bathing * One side striate sanded for wet bare skin transfers one side buff sanded for clothed transfers * Stress tested to hold up to 400 pounds * Board weight: 4 Two way stretch top enables the cushion cells to conform to the individual's body shape without diminishing product effectiveness or therapeutic value * The cover has a stretch Lycra© top material that is a durable heavy weight fabric with a soft feel * The side material is composed of a 3 layered knit polyester spacer fabric which provides superior air circulation that ventilates and cools the user * The fluid proof solid non skid base material offers a durable easy to clean surface * The cover has the added feature of Velcro© straps placed on the bottom to allow the user to attach the cushion to their chair * Velcro© is a registered trademark of Velcro Industries BV * 18 x16 * Sales are FINAL on all cushion covers * Warranty: 6 Month Limited Warranty