Individually shapeable aluminum in strap ensures maximum stability of the thumb saddle and thumb joint (first metacarpophalangeal [MCP] joint). Adjustable Velcro thumb tab provides adjustable restriction of movement at the base of the thumb. Adjustable Velcro fastenings around the wrist and thumb for individualized compression, precise fit, and ease of fitting and removal. Soft, seamless, lightweight, breathable material with air pores allows air circulation so your skin breathes. Medically effective support, leaves fingers completely free for full movement and fts easily inside a glove. Thumb can still be used for grasping and daily activities can continue uninterrupted. Can also be worn at night with no compression, by loosening the straps. Latex free and machine washable. Can be used to treat:"Technology" Thumb, such as text messaging, games, and cell phones. Skier's thumb (Lateral ligament lesions of the first metacarpophalangeal [MCP] joint)Gamekeeper's thumb. Osteoarthritis and chronic arthritis affecting the thumb and joint. Irritation in the region of the saddle and first metacarpophalangeal [MCP] joints of the thumb. Collateral ligament injuries. MCP joint is held and protected Slip on the Bauerfeind RhizoLoc thumb splint for fast relief from painful overuse syndrome. It can be worn at work or during sports when thumb joint and motion restrictions are necessary yet impact and stretching are expected. It restricts painful thumb joint motion. Adjustable Velcro closure pulls back the thumb so motion at the joint is effectively limited. Cinching the Velcro abducts the thumb so motion at the joint is restricted even more effectively.