Durable, high-impact ABS socket holder with strong magnetic backing. Holds up to 13 standard and 13 deep 1/4""Sq drive sockets up to 14mm. Ideal for use in tool chest drawers or can be attached to any ferrous surface. Allows you to maintain a tidy workstation with sockets always to hand. Durable, high-impact ABS socket holder with strong magnetic backing. Holds up to 13 standard and 13 deep 1/4""Sq drive sockets up to 14mm. Ideal for use in tool chest drawers or can be attached to any ferrous surface. Allows you to maintain a tidy workstation with sockets always to hand.