Key Features Arm Sling Therapeutic Sling The patent pending Imak Arm Sling features a massaging ergoBeads hand exerciser and neck/shoulder comfort pad, ErgoBeads are exceptionally smooth plastic beads that glide comfortably against your skin, This creates a massaging effect to help increase blood circulation, promoting healthy muscle tissue, Strap has hook and loop closure for easy adjustability, Massaging ergoBeads hand exerciser and neck/shoulder comfort pad enhances comfort, Breathable mesh design is lightweight and encourages air flow, Universal size fits right or left arm, SKU: BRNM675