Features: ●Made of aluminum alloy, the surface is anodized, durable and easy to use. ●It is a 45-type 300mm, 400mm, 500mm and 600mm cross-connector kit for T-shaped rails and T-slots. It can be made into cross-T-shaped rail guides and is easy to install. ●This product can be used with many woodworking tools, you can install it on planer tables, fences and use it for other purposes. ●Suitable for T-screws and quick-action fixtures. You can quickly and easily clamp the board to the planer table or table saw without a special clamping device. ●Suitable for woodworking. Smooth surface, to ensure smooth sliding, can be more labor-saving. Specifications: ●Material: Aluminum Alloy ●Color ：Red ●Size1: Approx.300mm/ 11.81inches ●Size2: Approx.400mm/15.74inches ●Size3: Approx.500mm/19.68inches ●Size4: Approx.600mm/23.62inches Package Includes: 1xWoodworking Chute note: 1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.