The Performance Tool W778 socket tray is a must-have for anyone looking to organize their 3/8" drive metric socket collection. With pre-marked metric size labels for easy viewing and identification, you'll save time during your projects by quickly finding the right socket for the job. The tray is capable of holding up to 30 3/8" drive sockets and accessories and is designed to hold both standard and deep metric sockets ranging from 6mm to 20mm. Built from high-quality materials, this tray is built to last and will keep your sockets organized for years to come. Perfect for both DIY enthusiasts and professional mechanics, the Performance Tool W778 socket tray is an essential tool for any workshop or garage.