Xtreme battery straps have MANY applications, from R/C Helicopters, Cars and MORE! Xtreme straps are designed to wrap around batteries and/or electronics, to hold securely in place. Xtreme straps are ¾" wide and come in 2", 3", 4"& 5" - inside diameter (adjustable). These straps are made from the highest quality ultra thin webbing and industrial strength Velcro®, with a very thin molded buckle. Tested and proven to be extremely durable. Product comes 2 straps per package.