Caps have an unusual, and most importantly useful property: without light bulbs and LEDs and generally without electricity, they glow in the dark! During the day, the material from which the skulls are made accumulates daylight and gives off accumulated lumens in the form of a bright glow with the onset of darkness. The cap is screwed onto the nipple of the rim instead of the regular, ordinary, black cap. glows, creating a beautiful halo of blue, green around the rims of a car or motorcycle. Our product is a sensation in the safety light of a car or motorcycle at night with the headlights and side lights turned off on dimly or completely unlit sections of roads.  Price for 4pcs. HAND MADE! 4PCS GREEN; 4pcs BLUE. HAND MADE !!!

included as part of the product description. We sell them as they are !!! NEED IT NOW!!!