High Quality Material: Made of high quality 304 stainless steel, it is more durable, resistant to oxidation, corrosion, rust, water, heat and not easy to damage. Scope of application: The glass clamp is suitable for 5-8mm thick frameless glass. Note: Please check whether your glass thickness is suitable before purchasing. No Need to Punch: The glass clamp is easy to install, just use the hexagon head screws to install it. The glass panel does not require openings. Adjustable: Each glass clamp holder kit is equipped with 2 rubber washers to make it strong and provide a firm grip on the glass, which can be adjusted to a suitable glass thickness. Wide Range of Uses: It can be fixed stably and securely on the glass. These glass clamps are ideal for fixing glass such as banisters, stairs and handrails.