1、Convenient to use, easy to install, good to fit, just use your hands without other tools, you can have a relaxing installation experience. 2、It is not easy to be noticed, can prevent shelf shake, it make the board sturdy enough to keep level and stable. 3、Perfect in shape, size, suitable for shelve holes on cabinets, entertainment centers, bookcases, and more. 4、5 mm in diameter of this shelf holders pegs. Your hole should be equal to or slightly smaller than the diameter (≤ 5 mm)for making dowel pins a tight fit. 5、Made of high quality ABS and zinc alloy material, which is durable and sturdy, not easy to wear and tear, so it has a long lifespan. 100 x Shelf Support  Item Type: Shelf Support Material: ABS Plastic + Zinc AlloyColor: Milky WhiteHeight: Approx.16mm / 0.63inInstallation Thickness: 10-30mm / 0.39- 1.18inWeight: Approx. 203g / 7.2ozFunction: Decorative furniture feet, to achieve the effect of heightening and beautiful, cabinet shelf support