[Material]:Our glass shelf support clamp bracket is made of zinc alloy,ensuring durability [Usage]:This clamp bracket has a wide clamping range of 3-21mm,making it versatile and suitable for different thicknesses of glass or wood boards [Easy to install]:Glass shelf support with screws,easy and convenient to install [Wide Application]:Our Clamp Bracket is great for use on wood boards,glass boards,bookshelves,bedside tables,and more [Modern Design]:The design of the glass shelf support clamp bracket is simple,it can blend with your home in any corner,and also add a unique beauty to your home, Weight: 0.21164377152 pounds, Manufacturer: Zanthicia