High Quality Material: The bench dog vise are constructed out of high quality Plastic, delivering strength and uniformity, and come with non- ethylene vinyl acetate (EVA) rubber bench brake inserts. Fit Size: The length of each bench dog clamp tool is 2 inches with a slightly less than 3/4 inch diameter and 1-7/8 inches without the bench brake bump. Installs easily by drilling a 3/4inch (19mm) diameter bench dog hole and simply press into place. Carpenter's Helper: The woodworking bench vise stops can fix wood boards to the utmost extent, no matter how various woodworking operations are. The bench dog stopper is used for preventing work pieces from slipping and moving when you are routing, cutting and sanding on your workbenches. Humanized design: The bench woodworking are always lower than the work pieces so that your planer and blades will not be damaged. It adds no interference on your woodworking bench clamps. Improve Safety: The woodworking kits is not only increases the precision of your woodworking projects, but improves the safety. It including removable padded bench brakes for an anti- work surface and two 3/16inch holes where dowels can be inserted for perfect painter's points. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:orange yellow Material:plastic Size:20mm Package Contents: 12 x bench dog clamp Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.