Description: 100% Brand New and High quality. Wheels diameter: approx. 11cm. Universal training wheels fits for 12/ 14/ 16/ 18/ 20 inch children's bicycles. These bicycle training wheels are made of high quality plastic and rubber which it is anti-slip, wear resistant, providing stability and help children to ride a bike without fear. This Set of Heavy Duty Rear Wheel Stabilizers Assists Young Learners to Ride Bicycle until They Have Developed a Usable Sense of Balance on the Bicycle. Suitable for Children's Bicycles of 12-20 Inches, Comes with Fittings, Easy to Assemble,The Support Brackets are Individually Adjustable. Specification: Type: Training Wheels. Suitable for Children's Bicycles of 12-20 Inches. Quantity: 1 Pair. Size: 11x11x2.2cm. Material: Plastic + Rubber. Optional Color: White, Yellow, Blue, Green. Note: 1. Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. 2. The colors may be different as the difference display. Please understand. Package Included: 2x Wheels. 2x Steel Bracket Rods. 1x Set of Mounting Kits. Please kindly Note: Items will be repackaged to save your shipping charge & to be environmentally friendly. We guaranty the item will be protected well in bubble bags, No retail box!