_x005F_x000D__x005F_x000D_The spiral water stop clamp is made of high-grade galvanized iron material, durable and wear-resistant. The spiral handle can increase the friction force when rotating, convenient to use, save time and effort, high-quality test tube clamp, water stop clamp, great for experiments Room supplies._x005F_x000D__x005F_x000D_Features_x005F_x000D__x005F_x000D_- Color: Silver._x005F_x000D_- Material: Galvanized iron._x005F_x000D_- Size: 4.00X3.50X1.70cm/ 1.57X1.38X0.67inch._x005F_x000D_- Made of galvanized iron, durable and wear resistant for long-term use._x005F_x000D_- The screw water stop clip with strong bite force, prevent from leaking._x005F_x000D_- The clip designed for laboratory instrument, school teaching, student, etc._x005F_x000D_- It has superb technology, perfect details and not easily deformed sturdy. It can meet your daily demands._x005F_x000D_- Ergonomic handle offers easier clamping and reduced hand fatigue._x005F_x000D_Packing list: 10 x clips