Feature: 1. ADJUSTABLE DESIGN: The training wheel arms have holes on both sides for easy adjustment, you can adjust to different holes to fit your bike size. 2. FITS BIKE SIZES: These heavy duty bike training wheels, well made and highly compatible, which are suitable for kids bikes from 18 to 24 inches. 3. DURABLE AND LONG LASTING: With high quality steel frame and anti shedding rubber tires, the wheel is durable, wear resistant and has a long service life. 4. SUITABLE FOR BEGINNERS: Bicycle assisted training wheel, compact structure, provides more safety and stability for beginners to learn bicycles. 5. EASY TO INSTALL: Our bike training wheels attach quickly and easily to your child's bike, helping them learn to ride a bike until they develop a good balance on the bike. Specification: Item Type: Bike Training Wheels Material: Steel+Plastic Weight: Approx. 1069g / 37.7oz Load Bearing: Approx. 100kg / 220.5lb. Package List: 2 x Wheels2 x Brackets11 x Accessories