Preferred material: The bracket part uses stainless steel material to ensure stability and a strong grip. The winding part is made of ABS plastic to ensure good anti-slip and maneuverability. Easy to use: The unique design of the fixed buckle can achieve tight positioning, which is more precise and convenient. Give you a better experience. This is a professional archery equipment, bowstring server fixture, winder, bowstring tool. Adjustable tension control, accept standard fixture spools, suitable for all types of archery service materials. Material: engineering plastics and stainless steel Specification: Condition: Material:Engineering plastics and stainless steel Color: Black String winder: 7.56.53.5cm String guard rope: 53.53.5cm String guard: about 120m The diameter of the arrow part of the winder: 1 cm Net weight:100g Package Contents: 1 x Winder Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.