Features: Adopting a second installation structure, users can complete installation and disassembly without tool, greatly improving work efficiency. Suitable for woodworking scenes that require frequent replacement of workpieces, reducing operations time. Crafted from aluminum alloy, it provide excellent wear resistance and corrosion resistance, ensuring a long service life. Solved the problem of traditional plastic tenons being easily damaged and suitable for various harsh working environment. precisions manufactured limit tenons ensure the accuracy of each positioning and avoid errors. Especially suitable for woodworking projects that require high precisions, improving the quality of the work. Suitable for multiple woodworking table models, it can be used directly without additional accessories, meeting the needs of different equipment. Suitable for professional carpenters with multiple devices to simplify the operations process. The overall weight is light weight, easy to carry and store, without adding any extra burden. Suitable for mobile assignments or studios with limited space, enhancing work flexibility. Specifications: Material: Aluminum Alloy Color:Black,Red Diameter:19mm,20mm Package Includes: 10Pcs benches Dogs note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.