Wide and Stable The bike auxiliary wheels are designed for 14, 16 and 20 inch children’s bicycles. They are made of thickened wear-resistant PU material to provide stability and smooth rolling during riding. Magnetic Luminescence These flashing auxiliary wheels feature magnetic luminescence. They create a beautiful light display without batteries and provide light on every ride. Quiet and Comfortable The PU flash wheels are designed for quiet operation and a comfortable ride. The solid PU material offers anti-wear properties for a smooth, steady experience. Easy to Use and Install Installation is hassle-free, and the wheels are highly compatible with a wide range of baby bicycle models. They can be easily installed on different 14, 16 and 20 inch bicycle frames. Specifications and compatibility - Compatible sizes: 14, 16, and 20 inch children’s bikes - Material: thickened wear-resistant PU - Light feature: magnetic luminescence, no batteries required - Performance: stable, quiet, and smooth riding experience - Installation: simple, adaptable to various models Practical use scenarios - Teaching a child to ride: Provides stable support while learning balance, reducing falls during early practice. - Family rides on flat terrain: Adds an engaging light display and visible stability for safer rides on sidewalks and parks. - Replacing worn wheels: Suitable upgrade for 14/16/20 inch bikes, extending wheel life and maintaining ride quality.