Lisle 40900 Red 1/2" Magnetic Socket Holder. It holds sockets up to 1" or 20mm. The tray has rubber feet to keep it from scratching your tool box.
Lisle 40200 3/8" Drive Red Magnetic Socket Holder for 28 Sockets
2 Pack Lisle 40200 3/8 in Drive Red Magnetic Socket Holder for 28 Sockets
Lisle 40200 3/8 in. Drive Red Magnetic Socket Holder for 28 Sockets
Lisle 5313181 3/8 in. Drive Red Magnetic Socket Holder for 28 Sockets P-4
Lisle 40120 1/4" Drive Red Magnetic Socket Holder for 26 Sockets
