StreetFX Tire Technix Ballistics, Part #138-77
StreetFX Tire Technix Ballistics are high impact, motion-activated wheel effects that feature an ultra-bright LED light. Tire Technix are easy to attach, simply screw onto your tire valve! Set of 2. Screws Onto Valve Stem & Creates a Ring of Light When the Wheel is Moving. Battery Powered - Easy to Replace Batteries (6 batteries included).