Features:Self-lighting, no electronics, beautiful protection two in oneInside and outside the double layer to create, in one go, beautiful pumpingFor vacuum tire valve cap replacement and upgradeHigh-quality ABS material, practical, long lifeSubstantial phosphor to build, a lot of light storage, put light longerSpecification:Material: ABSColor:Blue,Green,Pink,Red,Orange,BlueSize:1.5cm/0.59inch x 1.2cm/0.47inch.Package Included:4Pcs x Car Luminous valvesNO Retail Box. Packed Safely in Bubble Bag.