Premium Metal Material: The glass connector clamp is made of high quality stainless steel, strong and durable, corrosion resistant, not easy to rust. Note: Please pay attention to measuring the thickness of the glass before purchasing to confirm whether it is suitable. Non-slip design: Screw with non-slip rubber head, can firmly lock the glass to prevent slipping. Suitable for 8-10mm thick glass, chalkboard or acrylic plate.52*52mm Easy to use: 90 degree glass corner clamps are easy to install, no need to drill holes. Wide Application: Perfect for fixing or assembling glass panels of glass draft shields, showcases, aquariums, showcases, etc. Package contents: 4 right angle stainless steel fixings. Note: The data are manual measurement, please allow a 1-3cm error, due to the differences between the light and the display, there will be a certain color difference, the specific received in kind prevail.