New LED LOGO Wheel CAP Light Set of 4 Wheel Cap LOGO LED; Package: 4 Pcs / set; Waterproof,will be not affected by wet weather. No batteries needed, no need wire, activated while driving; The emblem will not rolling while driving, use Rolls-Royce equipment technology. TOYOTA LOGO remain Steady , the wheel rotates, a stationary logo; Make sure your Center Cap Logo can be POP -Off, and Approx of 58mm(2 1/4") Automatic lighted above 38KM/h (25MPH); The emblem will be shiny when car speed up to 38km/h Color: Blue; Environmental product, it needs no battery, PMG( permanent magnet generator) working principle.