DMI Adjustable Pocket Arm Sling with Wrist Extender This lightweight arm sling helps relieve pain and prevent re-injury by supporting your arm while it's healing after an injury, broken arm or surgery. Use it with or without a cast; one size fits most. It also has a convenient wrist extender for added hand support. The hook and loop strap make it easy to adjust. The sling is made of durable poly-cotton material that's machine washable. Tumble dry on low. Features This lightweight arm sling helps relieve pain and prevent re-injury by supporting your arm while its healing after an injury, broken arm or surgery. You can use it with or without a cast. One size fits most. It also has a convenient wrist extender for added hand support. The hook and loop strap make it easy to adjust. Made of durable, machine washable poly-cotton fabric