Description:Made of Zinc Alloy in silver tone and featured with suction cup, easy installation.Silicone suction cup stick to glass face, Soft material will not scratch the glass. It is mainly used as a non-slip and cushioning effect of the glass laminate, and the suction effect is not large.Great for solid wood plywood plastic and glass ,widely used on wine cabinet,display cabinet,book shelf,closet,shoe cabinet and so on. Suitable for glass shelves.Specification:Material: Zinc Alloy ,silicone e.Dimension: As picture showPin Diameter(Approx):5mm/0.20 inchPin Length(Approx):9mm/0.35 inchFit for board thickness(Minimum)：9mm/0.35 inchColor: Silver ToneNote:Please install on a straight horizontal surface.Package Content:20pcs x Shelf Support Peg.