Plaster of Paris bandage/POP bandage, a gauze bandage coated with plaster of Paris. The bandage comes wrapped around a plastic spool, which is designed to allow rapid and even wetting upon immersion. Once wet the bandage sets, forming a hard and rigid structure that is both porous and absorbent.
Application: immobilize joint or limb fractures, applied as a slab, splint, or full cylindrical cast.