Designed for holding light bulb into the light fixture, practical and convenient. Made of premium material for long time and durable use. It has a simple design, but very practical in use, giving you a good using experience. Also can be a good gift choice for your friends, they will like it. Features -Color:Silver-Material:Copper-Size:2.40X1.00X1.00cm/ 0.94X0.39X0.39in- Easy wiring. The sockets fit perfectly into the existing holes in the fixture and the rings hold them in place.- The copper-nickel plated finish is perfect and the retro look works well with table lamps.- Can be used for light sources and indicator lights in distribution boxes, etc., also in physics labs and student home labs.- Special design and it is in fine craftsmanship. It is the best replacement for your old, broken one.- Outstanding workmanship, reasonable design, stable and practical, will bring you a good using experience. Packing list: 10 x Lamp Bases