Anatomically designed to provide comfortable support, protection and immobilization of the 4th and 5th metacarpals; average length 6 5/8". Constructed of lightweight low-density polyethylene shell with soft foam liner and palmer pad and closure straps. Cotton Stockinette liners also available (sold separately).Quantity: 1Size: Right or LeftSmall, Medium, Large, X-LargeColor: WhiteMaterial: Lightweight, low density polyethylene shell w/soft foam liner, palmer pad & closure straps.Manufacturer: CorflexIndications: Indicated for treatment of acute or sub-acute fractures of the 4th and 5th metacarpals commonly referred to as "boxer fractures"Application: Place splint on flat surface with opening facing up.Open all straps and rest hand inside splint.Make sure 4th and 5th metacarpals rest comfortably in angled portion of splint.Secure distal strap around 4th and 5th metacarpals then secure proximal strap around wrist.Slide middle strap through buckle, center pad across web space and secure strap snugly.Retighten distal and proximal straps to desired comfort.Care & Cleaning: Wipe plastic shell with damp cloth. You may use disinfectant or mild soap, and wipe dry. For products with a removable liner, you may hand wash liner in warm water with mild soap. Air dry. Do not use high temperatures to wash or dry.Options:RightSmall (37-1201-000) UPC: 630745039517 Medium (37-1202-000) UPC: 630745039524Large (37-1203-000) UPC: 630745039531X-Large (37-1204-000) UPC: 630745039548LeftSmall (37-1211-000) UPC: 630745039562Medium (37-1212-000) UPC: 630745039579 Large (37-1213-000) UPC: 630745039586X-Large (37-1214-000) UPC: 630745039593Sizing Guide:Measurement taken from wrist circumference and 4th & 5th MCP jointSmall - Wrist: 4" - 5" / 4th & 5th MCP joint: 2 3/4" - 3 1/4"Medium - Wrist: 5" - 6" / 4th & 5th MCP joint: 3 1/4" - 3 3/4"Large - Wrist: 6" - 7" / 4th & 5th MCP joint: 3 3/4" - 4 1/4"X-Large Wrist: 7" - 8" / 4th & 5th MCP joint: 4 1/4" - 4 3/4"