Specification: Material: ABS, copper Size: 45 x 2mm / 1.77 x 0.08Inch Color: blue, silver Package includes: 5 E10 bulbs and 5 E10 sockets. Easy to install and quick to connect. Can be used to make simple circuits. Ideal for , laboratory use. These keepers allow for quick connections when making simple circuits. Dimensions: 45x2mm/1.77x0.08 inches Package includes: 5pcs E10 bulbs and 5pcs E10 sockets.