Alera ALESW59SLBL Wire Shelving Shelf Lock Clips, Plastic, Black (Pack of 4 Clips) Go to amazon.com Related posts 15 best metro shelving clips FeatureLocks down shelving securelyConstructed to stand up to daily wear-and-tearGreat quality DescriptionPlastic shelf lock clips. Locks down shelving securely. Constructed to stand up to daily wear-and-tear.