Features and Benefits Makes ordering a complete set of Hansen Global socket trays fast and easy Socket trays eliminate toolbox clutter Socket trays made of durable ABS plastic that resists oil and gas Socket sizes marked on posts for instant identification Post bases are beefed up to hold sockets more securelyHNE92000 Socket Tray Six Pack holds one each of six different socket trays in one box. Assortment includes 1/4" Metric, 1/4" Fractional, 3/8" Metric, 3/8" Fractional, 1/2" Metric and 1/2" Fractional. Perfect for the mechanic who wants to organize all of his socket sizes for ease of access and appearance.