1. quality material: Our shelf holders are crafted from iron with nickelplated coating, ensuring exceptional hardness and strength to resist breakage or deformation. They provide firm and stable support for your shelves. The smooth, burr surface is rustproof, oxidationresistant, and built to last. 2. Lshaped design: Featuring a 5 mm pin diameter and 4 mm hole diameter, our Lshaped shelf supports offer loadbearing capacity. The design extends support to both sides of the shelf, securely anchoring into the wall for enhanced stability. 3. Strong storage capacity: Each set includes 20 shelf supports with a 5 mm diameter. The Lshaped bracket has a pin length of 10 mm and a width of 12.8 mm, delivering robust loadbearing performance, extended durability, and resistance to daily wear. 4. Easy to install: The angle floor supports can be effortlessly installed by hand. Simply lay the pins flat, insert them into predrilled holes, and balance the plate. Compatible with wood, glass, and removable laminates, the finely polished surface and integrated molding ensure a secure, longlasting hold.