🚴♀️ Ride with Confidence and Style! Watch the wheels light up as they touch the ground, adding excitement to every ride. Always use under adult supervision for a worry-free biking experience. Experience a smooth ride with our anti-slip, wear-resistant wheels. Enjoy a quiet ride with our feather-light design. Designed for single-speed bikes, fitting a range of 12-20 inch bicycles. Supports 90 lbs Fits 12-20" bikes 4.54" diameter The YTKD Training Wheels are designed for bicycles ranging from 12 to 20 inches, featuring a 4.54-inch diameter. Made from high-quality plastic and rubber, these wheels provide stability and safety for riders up to 90 pounds. They are lightweight, noiseless, and flash when in motion, making them a fun and practical choice for young cyclists. Note: Suitable for single-speed bikes only.