Vari+San Circular Wristband Size 4 1ud is an accessory that helps to immobilize the wrist in order to reduce joint stress and prevent the injury from increasing in cases where the wrist has suffered a sprain or will undergo physical exertion. It is an elastic wrist brace with normal compression, indicated for the prevention of wrist injuries or for athletes who perform constant hand gestures (tennis, basketball, volleyball...) *Size 4: 17-19cm in diameter **For hygienic reasons we will not accept exchanges or returns of this product.