Features: 100mm teethless/450mm teeth/M8/M6/200mm teethless/300mmteethless/450mm teethless/100mm teeth/200mm M6 teeth/200MM M8/ 300mm teeth, all kinds of types, meeting your different needs. Produced by aluminium alloy, it will serve for a long for time. Excellent woodworking new type for T slot track nut slider, diy your woodworking table. T-Slot nuts makes the user to add clamps to a fixture without tearing down existing clamps. Beautiful appearance with red surface, against rust. Specifications: Material: Aluminum Alloy Color: Red Hole Spec: 3pcs x M6 hole+2pcs x M8 hole 5pcs x M6 hole+6pcs x M8 hole 4pcs x M8 hole 4pcs x M6 hole 4pcs x M6 hole+3pcs x M8 hole 8pcs x M6 hole+9pcs x M8 hole Package Includes: 1x Red Slot Slider note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.