3 Piece Copper Infused Set: Elbow/Knee/Ankle - Improve blood circulation while increasing joint and muscle mobility with this 3-piece copper infused braces set. The healing powers of real copper are the key. Made with 30% copper infused fabric. Gentle effective compression helps support the ankles. Aids in boosting athletic performance, recovery and soothes aches and pains. 30% nylon copper, rubber and spandex. One size fits most. Elbow: 9.5" x 3.15"; Knee: 10.2" x 6.7"; Ankle: 9.5" x 3.15".