These drawer slide slots are very well made as they have plastic bosses at the top and bottom where the slots usually have cracks or breaks. This journey makes the sockets far more durable than most other sockets you can buy. Most drawer slides break due to pressure on the top of the drawer as it slides out of the cabinet. This puts a lot of pressure on the top of the drawer nest, eventually breaking nests that don't have a ledge at the top for extra support.