Features: 1. Tools: durable violin viola cello edge clamp luthier maker Tools. 2. Professional edge clamp: professional edge clamp to repair cracks close to the edge. 3. Violin clamp/crack: violin clamp/crack, adjustable precision double guide rods. 4. Material: it is made of good quality brass, easy to use. 5. Adjustable Precision Double Guide Rods: Adjustable Precision Double Guide Rods, adjust the length by screw, flexible to use. Description: With lightweight and portable size, this clamp is easy and convenient to carry and use. Specifications: Overall Size: 70*55mm Material: Brass + Iron Package Included: 1*Clamp Notes:1. Please allow 0-1 inch error due to manual measurement. Thank you for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object.