Features: 1. Quality Material: These woodworking hole table limit blocks are made of high-quality aluminum alloy, ensuring durability and longevity. 2. Pack of Four: Each set comes with four blocks, offering more possibilities and flexibility during your woodworking projects. 3. Non-Slip Design: With non-slip mats, these limit blocks provide exceptional stability and precision during use. 4. Quick Dismantling: The blocks feature a quick-disassembly design, making them easy to remove and install, thus saving your work time. 5. Colorful Options: Available in four different colors - red, gray, green, and purple, you can choose the one that best suits your tools or workshop decor. Specifications: - Material: Aluminum Alloy - Optional Size: Fit 19/20mm holes - Optional Color: Red, Gray, Green, Purple Package Included: 4 x Hole Table Limit Blocks (Size & Color as your choice)