A: Elbow Splint Immobilizer: Protects your arm/elbow while sleeping or at night, good for pain relief and post surgery recovery. Two: Physiotherapy Splint: Help with Elbow Inflammation, Injuries, Fractures, Elbow Fractures, Cubital Tunnel Syndrome, Ulnar Nerve Pain Relief. Three: Much firmer fixation, can be better desired compression and pain relief, help relieve elbow pain, the steel plate has strong stability and flexibility, not easy to cause deformation. Four : Immobilizes and prevents the elbow from bending while allowing some movement, ideal for elbow fracture, night splint applicable for postoperative elbow joint recovery. Five: S for Pediatric/Infant/Kids, and M/L for Youth/Adult/Women/Men, adjustable, fits right or left arm.