Halyard Bilateral Facial Ice Bag, 5 x 12 Inch, 1 Each Invalid Rings These seals have a breaking 8975 These seals have a breaking point at the base of the pull tab that enables the seal to be removed without the use of tools 18 L x 18 L * Provides flat sitting surface and eliminates the hammock effect associated with traditional wheelchair seats * Made of lacquered finished plywood * Corners and sides are rounded to prevent chipping * Makes an excellent sitting surface when combined with a pressure relief cushion * Splinter free plywood * Weight capcity : 300 lbs * Two single use instant cold packs require no special preparation or refrigeration Ice bags are connected by straps which can be used to affix around head with hook and loop closures