Product Specifications Primary Medical Purpose: Rigid straight-arm immobilization support to alleviate Cubital Tunnel Syndrome, ulnar nerve entrapment, severe tendonitis, and joint friction relief. Stabilizer Mechanism: 3 built-in rigid support plates delivering 360-degree wrap-around arm security with zero slipping. Compression Hardware: 3 adjustable heavy-duty ergonomic hook-and-loop straps targeting the upper arm, elbow joint, and forearm independently. Premium Textile Technology: Skin-friendly soft foam lining laminated with smooth, moisture-wicking Lycra fabric (Latex-free and fully breathable). Sizing Universality: Available in 3 adjustable sizes for unisex adult men and women; reversible design flawlessly fits either the left or right arm. ### Product Core Benefits Uncompromising Straight Arm Security: The innovative wrap-around 3-plate design forces the elbow to remain in the most scientifically proven low-pressure position during rest, giving inflamed nerve tissues a golden recovery window throughout the night. Cloud-Like Sleep Engineering: Soft padding eliminates all sharp edges common in standard medical splints; the lightweight perforated fabric prevents sweating or skin irritation, ensuring you can sleep peacefully all night and wake up refreshed without morning stiffness. Personalized Compression Control: Three independent heavy-duty fastener straps allow users to freely customize the tension levels across the upper arm and forearm, ensuring a snug, non-bulky personalized fit that won't ride up or shift. ### Optimized Usage Scenarios Overnight Recovery Shield: The ultimate nighttime sleep immobilizer engineered to stop unconscious arm bending or joint twisting, directly eliminating midnight tingling and finger numbness flare-ups. Daytime Rest & Physical Therapy: Sleek, low-profile medical protector perfect for managing acute tennis elbow or golfer's elbow flare-ups while reading, watching television, or relaxing during home care rehabilitation. Post-Surgery Clinical Immobilization: Delivers reliable, non-bulky rigid stabilization for post-operative patients or individuals requiring strict motion restriction for accelerated daily recovery. Important Product Boundary Notice: This item is engineered as a soft-padded straight arm immobilizer with internal rigid plates for nerve decompression and resting recovery. It is NOT a dynamic hinged sports sleeve designed for high-flexibility athletic movements, nor is it a substitute for an orthopedic rigid plaster cast for severe, displaced bone fractures. Please always measure bicep circumference, not wrist, to find your perfect fit.