ACCURATE SIZE: 2.9x5.5cm/1.2x2.2inch( Height: about 5.5cm; Outside diameter: about 3.5cm.) EASY TO INSTALL :Convenient for daily use.Dust cover is waterproof and keeping away from dust.Each socket has a retaining nut against a panel. HARD PLASTIC MATERIAL; flame- hard material, which is resistance to high current, high temperature and wear ,work perfectly with any car powered devices,and also you can use the connectors we offered for higher load capacity. 19.7 INCHES WIRE:Long wire can fit most car ,need not to worry about that the socket can't reach the power. FUSE FOR Over-load PROTECTION: Any DC 12V or high load capacity be protected to burn when the current is to high.Don't worry about the current in your car. colour:Black Material:plastic Package Contents: 1 x Lighter Socket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.