size: S: 29.2cm (11.50in) long, 24.5-28.7cm (9.65-11.30in) wide, suitable for children aged 2-5 M: 34.8cm (13.70in) long, 26.2-31.8cm (10.31-12.52in) wide, suitable for adult women L: 38.7cm (15.24in) long,29.7-35cm (11.69-13.78in) wide, suitable for mature men Type: Knee Immobilizer Brace Description: Integrated design of brace and bandage: Immobilizes and prevents the elbow from bending while still allowing for some movement,great for an elbow fracture, night splint applicable for postoperative recovery of elbow joint Soft and breathable: comfortable skin-friendly fabric material that allows your skin to breathe, extremely comfortable to wear Package Include: 1x Arm splint