This socket bin is designed for the low-profile organizer (or used in conjunction with a bunk bin for the full-height organizers) to hold 3/8" socket sets. This is a generic set that should fit most brands. Approximate sizes range from 6mm - 21mm or 1/4" - 1". *This is for the short socket sets (lower two bins in the photo). For deep well sockets, check out our 3/8" Deep Well Socket Holders and Bin. For custom widths and heights, please send an email or PM using the links below.