Features and Benefits: * Hansen Socket Trays straighten out toolbox clutter and chaos * Patented Socket Trays are made of tough ABS Plastic that resists gas, oil and abuse * Provide easy access and organization for individual sockets * Post bases are beefed up and designated to hold sockets more securely * Lifetime warranty against manufacturer defects, made in the U.S.A. Set comes with one 1/4", 3/8" and 1/2" drive tray. 1/4" Tray holds 28 Sockets - Sizes 4mm to 15mm 3/8" Tray holds 30 Sockets - Sizes 6mm to 20mm 1/2" Tray holds 34 Sockets - Sizes 10mm to 25mm and 27mm