Comfyprene Splints Slim profile, neoprene covered splints are adjustable using patented metal insert. Straps can be fastened anywhere on splint for optimal fit. Multiple layers of cushioning. No tools required for custom adjustment. Removable covers fasten with hook and loop closures. All models available in one Adult and three pediatric sizes. Color may vary. Comfyprene Hand/Wrist Orthosis easily bends to curves of hand while comfortably supporting the fingers. Fits left or right. , Sizing: Adult: One size fits all. Specify Purple or Light Blue. Pediatric Sizing: Specify Purple or Light Blue. Specify S, M, or L. Small fits most children up to age 4 Medium fits 4 - 8 yrs. old Large fits 9 yrs. to small adults