●【Reliable Marine Grade】 This model is made of stainless steel 316, marine grade anti-corrosion and made to last, can be used for outdoor, indoor, coastal and inland projects. ●【Heavy Duty】 2" diameter, Net weight of each standoff is about 1.3lb / 600g, 2" in diameter. Suitable for heavy duty glass railing balustrade projects. ●【Modern】Quite modern, neat and beautiful matte black finish. ●【Super Easy DIY】Designed with simple structure for easy DIY installation. 【With Both expansion bolt & lag bolt】With both expansion and lag bolts, it can be used on concrete floor or timber floor. Save your time for searching screws. ●【Wide Application】Suitable for 8mm-16mm(5/16", 3/8", 1/2", 5/8") glass. Recommended hole size on the glass is 14mm diameter.