Features: Starting Stringing Clamp Tool (including soft pad) for Tennis Badminton Racket, a necessary tool for any tennis racquet. The starting clamp is make of Zinc alloys and spring steel, high strength, strong and enduring. The tennis racket starting clamp will not damage the string, wide head avoids hurting hands while tying knot. 3 spring to help better to maintain tension, Spring grippers can used as extra starting clamp or for pulling tension on short strings. The handle provide grip and comfortable. Great accessories for stringing. Specifications: Component: Zinc alloys and spring steel Color: black/Red color/Green Size: about 14x7.70cm/5.51x3.03inch Package Includes: 1Pc Tennis Racket String Machine note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.