Please note that this socket Organizers kits not include socket The base hold the Socket firmly, and can easily attach the socket tool Organizers to any metal surfaces. The socket storage set with a combination of shallow grooves The top row is suitable for socket, while the bottom row is suitable for standard-sized Socket Suitable for vehicle repair, mechanical processing, home maintenance, construction, industrial maintenance The socket Organizers tray is aluminium, which is durability, Manufacturer: REITINGE