Features and Benefits: *Organizes a total of 300 1/4", 3/8" and 1/2" drive metric sockets Includes: (100 Pcs) TGH-04PM, " Drive Socket Holder ‐ Metric (100 Pcs) TGH-05PM, 3/8" Drive Socket Holder ‐ Metric(100 Pcs) TGH-06PM, " Drive Socket Holder ‐ Metric (300 Pcs) TGS-01, Toolgrid Screws (4 Sheets) Metric ID Labels(1 Sheet) Torx ID Labels Locating pins on the bottom of each holder fit into the holes of the Toolgrid board for a quick and easy set-up. Once a set-up is complete the holders are secured to the boards with specially formulated T20 screws For greater visual tool control, identification labels can be added to the recessed pockets in holdersToolgrid is a series of patented tool holders and boards designed to organize and securely hold tools in place.