materials: Finger is made of high-quality OK fabric composite material and aluminum alloy bar, which is convenient and not easy to grind, and the belt is not easy to grind, so the operation is simple and convenient. Wear it very comfortably and airily. . Size: 4.53 inches long, 3.15 inches wide, the built-in aluminum plate is 2.36 inches long, 2 Stck, Grendel is adjustable, just adjust the fingertip fr to better match. A Gre is suitable for many fingers. . Easy to carry: Excellent cloth, small size, easy to carry, day and night, high air permeability, soft and comfortable, easy to clean, very suitable for carrying. happily carry: Lock design, firm bonding, can adapt to finger joints, built-in metal plate, can make fingers suture stably, excellent feed, comfortable and soft, composite material, breathable, can make fingers soft tissue fall off. S7-1200 programmable controller