Wrist-Hand PlastiCast immobilizes wrist while allowing full finger/thumb ROM. Semi-rigid polyethylene shell with a 1/8"-thick thermo-bonded closed-cell polyethylene foam interior for comfort and easy application. Hook and loop closures. Ventilated. Hypoallergenic. Radiolucent. Water resistant. Modify with scissors and heat gun. Comes with one pre-sewn, cotton stockinette liner. Indications: Post-cast fracture immobilization, navicular fractures, nondisplaced distal forearm fractures. Size Medium: 3-1/4" to 3-3/4" MP diameter, 8" to 9" Wrist Circumference, 10" to 12" Forearm Circumference