6 Pc. Hansen Socket Tray Organizer Set 1/4",3/8",1/2" Deep Sockets go on long back pegs--Shallow sockets go on shorter front pegs Each peg marked with a specific size for that peg End Tangs for Picking Out of Tight Tool Boxes Post bases are beefed up and designed to hold sockets more securely Made of tough ABS plastic that resists gas, oil, and abuse