1. The product is made of high-quality carbon steel, which is strong and has a long service life. 2. The product structure is simple and easy to use. 3. The clamp is not easy to loosen after being fixed, and the clamp is firm. 4. The product is easy to install. 5. The product is suitable for fixing all kinds of mechanical assembly parts, quick clamp welding, wood polishing, etc. Specifications: Feature: The product is made of high quality carbon steel, which is strong and has a long service life. The product structure is simple and easy to use. The clamp is not easy to release after being fixed, and the clamp is firm. The product is easy to install. The product is suitable for fixing all kinds of mechanical assembly parts, quick clamp welding, wood polishing, etc. Specifications: Model: 4001;4002;4003 (Optional) Material: Carbon Steel Package List: 1*Clamp 1*Hook Note: The actual color of the product may differ from the photo due to light. There may be slight deviation in product measurement.