Flexible Operation 30 /45 Type Woodworking Gutter for Woodworking Enthusiast 11.81/17.7/25.59 Inch Aluminum Alloy OOTDTY Features: ● High-quality woodworking material: The slider is made of high-quality aluminum alloy material. Accurate dimensions, smooth and burr-free, not easy to deform and slide smoothly.● The red slider is suitable for 30/45 type wood chute, which is not easy to deform, use a 2.5 hex wrench to change the tightness of the slider by moving the strap. The retaining ring prevents the slider from falling out of the chute.● Strong practicality: easy to use, flexible operation, widely used in winding tubes, round frames, pipes, automobile bodies, woodworking and construction, suitable for woodworking enthusiasts, designers, engineers, architects, students, teachers. ● Product specification length: 300/450/650mm.● Product weight: 150g/220g/320g section size 19.2X9.6mm screw hole m6.● Christmas gifts: carpenter's ring guides are flexible in operation and are excellent Christmas/birthday gifts for carpenters, designers, engineers, architects, students, teachers, fathers, etc. Specification: ● Material: Aluminum Alloy● Color: Red● Size1: Approx.300mm/11.81 inch● Size2: Approx.450mm/17.71 inch● Size3: Approx.650mm/25.59 inchPackage Included: 1XWoodworking SliderNote: 1. Please allow 1-2mm errors due to manual measurement, please make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Users must bring their own (2.5 Allen key). Modification parts, user plate thickness difference, slider users need to prepare their own screws (M5 or M6 screws, self-tapping screws)