Features: Brand new and high quality The Benches dog clamp is aluminium alloy with anodised surfaces. It can withstand more complex working conditions. Compared to stainless steel, the aluminium alloy is only 1/3 of its weight, long service life. Fit 19/20mm dog hole diameter of workbench, can be fixed directly by placing in benches, fit for table surfaces. Dog clamp is an essential hold-down device that should be part of any workbench. Suitable for milling, cutting, can hold items well. The benches dog stopper is used prevent workpieces from slipping and moving when you mill, cut and sand on your workbenches. The woodworker's workbench dog clamp is located deep than the workpiece, so your slicers will not be damage. Specifications: Mateiral:Aluminum alloy+plastic Size: Approx. 28x36.3x20mm/1.1x1.43x0.78inch Fit hole size:19mm/20mm Package Includes: 8x Dog Clamps note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.