Keep 1/4", 3/8" and 1/2" sockets easy to find. 1.Easy-to-read markings identifies all SAE and metric sockets 2.14-1/8" depth x 19-1/2" width holds 120 pieces 3.Includes individual rows for 6 and 12 point SAE, along with 7 spaces for 1/4", 3/8" and 1/2" adapters