With a large size of up to 45.7 inches (116 cm) wide, you can enjoy stable flying. ABS plastic ribs and fiberglass ribs ensure strength. There are two points of splicing for the strong and weak of the wind. The included thread is a polyester reinforced type. Note: When performing calluses, please do in a wide area with little traffic without wires or buildings around. Please follow prohibited places and rules such as height limitations. Avoid calluses flying in strong winds, or thread may cause injury to your fingers.