Features: Make of stainless steel materials, strong and enduring, which is rustproof, waterproof and heat resisted, not easy to damage. Rubber spacers protect the shelf from wear and tear and can be easily adjusted to your shelf thickness with it. Adjustable for its suitable glass thickness with its rubber layers and the small adjusting screw. The special designs of this Glass Clamp allows it to be easily installed on most Glass Door or other surfaces without causing damage. It can be stably and safely secured to fixing in the glass, good perfect for fixing glass of balustrade, Staircases, Handrails. Specifications: Materials: Stainless steel Styles: Square clip/Rectangular clip Square clip size: about 43x24x43mm/1.69x0.94x1.69inch Rectangular clip size: about 42x24.5x63.5mm/1.65x0.97x2.5inch Package Includes: 1pc Glass Railing Clamp note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.