Rustproof & Sturdy : The glass clamps are made from 304 stainless steel, which is more durability and resistance to oxidation and corrosion, rustproof, waterproof and heat-resisted, not easy to damage Glass Clamps Size : 8pcs of glass brackets, size 52*43*24 mm (H x L x T/D).suitable for 8-10 mm glass, allows to install onto square tubing or flat surfaces Self Adjustable : Adjustable for its suitable glass thickness with its rubber layers and the micro-adjusting screw Safe Application : The glass clamp is easy to install, the rubber gasket can be stably and safely secured to fixing in the glass, hold the glass firmly, good ideal for fixing glass of balustrade, staircase, handrail, Etc. Easy Assembly : Package comes with a M4 and M3 hexagon driver ,no drilling is needed, Manufacturer: Bohaner