Features: The socket Organizers tray is aluminium, which is durability, heat-resistant and corrosion-resistant. The magnetic 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 deep and shallow grooves. Suitable for vehicle repair, mechanical processing, home maintenance, construction, industrial maintenance. The top row is suitable for deep Socket, while the bottom row is suitable for standard-sized Socket. Please note that this socket Organizers kit not include socket. Specifications: Component:Aluminium Type:40Pcs Sleeve Slot/120Pcs Sleeve Slot Size:Approx.44x12x2.50cm/17.32x4.72x0.98inch Package Includes: 1Pc Socket Organizers note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.