brand new and high quality Features: Prevent shock by static electricity. Easy to install to your car. It is more safty when you driving at night . The size of fixed ring can be adjusted according to different models Eliminate static electricity to prevent spontaneous combustion Belt Ground Wire prevents shock produced by displacement static electricity Which charges power on chassis and reached to the car by electricity through to belt. specification: Color:black Material:Rubber + copper wire Size: A: suv: 35-37cm B: sedan: 30-32cm Quantity:1set Note: Please allow 0-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 set Car Electrostatic belt