Product Name: 400mm/16" Aluminum T-Track Slider with Screws Double Cut Profile Universal with Predrilled Mounting Holes Each Track Size: Length: 400mm/16inch; External Size (W*H): 19mmx9.5mm/0.75inchx0.37inch T-Screw and Threaded Rod Size: M8; Material: made of good quality Aluminum Alloy,and resistance to wear and corrosion,fine workmanship Color: Silver Easy to install: Easy to install each track is equipped with pre-drilled mounting holes for simple installation. Features: Perfect Woodworking new type T slot track, it's a very convenient and useful tool, Suitable for T screws, quick acting clamp; The T-Tracks feature a double-cut design for hardware versatility. Application: Widely used for many woodworking and metalworking applications for holding, positioning and securing workpieces and this T-track miter is ideal for building jigs and devices for radial arm saws, workbenches, drills and various other machines. Package Content: 4pcs 400mm length T-Track Bars 12pcs Screws PLEASE NOTE: Due to different display screens and lighting effects, the actual color of the item may be slightly different from the color shown All merchandise we sell are in good quality and under examination before they are shipped.We will try our best to avoid any quality problem Any question or problem, do not hesitate to contact us,we will reply you within 24 hours