Ebest - Bike Bicycle Tyre Valve Cap Light, Firefly LED Tire Light, Tire Motion Activated Wheel Effects Light Valve Stem Cap Covers, 2 PCs/Set, Yellow
Ultra-bright LED high impact motion activated wheel effects * Fires automatically when the wheel is moving, screws onto tire valve * Fits standard valve stem thread * Sold as 2 pack * Operates using 3 AG-10 batteries (included)