Perfect for most seismic regulations and designed for the 32mm system. Manufactured from the highest strength nylon availbale the clip is classified for product grade 1 level in ANSI/BHMA A156.9-1988. Locks the shelf within the cabinet front to back and top to bottom providing maximum safety for retaining the shelf within the cabinet and still allowing for full adjustability. Additionally, cabinets can be shipped with the adjustable shelves installed and protected from jobsite and transportation conditions. Shelves 1/2", 3/4" and 1" can be used with the same clip. WIC approved.