Medilink Thumb Spica Splint is a convenient device designed to keep the thumb in the functional that is abduction position. It supports the CMC joint and immobilize the MCP joint of the thumb without inhibiting hand movement. Helps reduce pain and inflammation and prevents further thumb injury. Breathable 3 layered puf fused fabric : Durable excellent aesthetics and better comfort. Removable malleable splint : Provides customized abduction of the thumb and ensures excellent immobilization and stability to CMC and MCP joints. Ethafoam lining : Allows full hand and finger movement sleek trendy and comfortable with better compliance.