ELIMINATE TOOLBOX CLUTTER SAVE TIME This complete socket trays set is designed for eliminating your toolbox cutter and keeping it organized. Make it convenient for you to find the dedicated socket instantly FAST TO RECOGNIZE Each posts marked with clear socket sizes for instant identification to save your time. Red SAE and black Metric socket tray make it easy to distinguish when they mixed SAFE STORAGE Made from durable ABS that can keep your socket from oil and gas. Featuring extended base to hold your socket securely COMPLETE SAE METRIC RANGE Fit for SAE size from 1/8 to 5/8 (1/4" drive), 1/4 to 1 (3/8" drive), 3/8" to 1-1/4"(1/2" drive). Metric size from 4mm to 15mm (1/4" drive), 6mm to 20mm (3/8" drive), 10mm to 27mm (1/2" drive) AVAILABLE FOR BOTH DEEP SHALLOW Dual rail design support storing both deep and shallow at the same time TIGHT AND TIDY: With a maximum peg height of 3.7 inches, these trays could fit in many tool drawer organizer designs; They also feature a hole for mounting on a workstation or wall