This is the left handed, large sized version of the Thermal Wrist Strap that features a metal wrist splint and a Velcro fastening.These features work in tandem to provide extremely reliable support and protection and helping to promote circulation and wrist posture. This is especially helpful in the treatment of Carpal Tunnel Syndrome and repetitive strain injuries. Ideal for the active person, the Thermal Wrist Strap is an affordable and effective physiotherapy aid that is ideal for everyday use.