Item Specifics Product Name: Car Anti Static Keychain with Lamp Tube Feature: Eliminate static electricity. Color: Black Red Blue Yellow Product Material: Resin PC Lamp Size: 5.8cm*1.8cm*0.8cm Model: SD-2209 Suit For: Universal Product Description Using high-quality conductive resin material with lamp tube, well-produce product for you. Unique oval and double blister design, choose your favourite one from four different colors. Put the end of this product close to the metal to eliminate static electricity, you can see the faint light when the electrostatic strong enough. Thiere is no association between the product's size and effect. Package Includes 1pcs Car Anti Static Keychain with Lamp Tube