Training Wheels for Bicycle,Compatible for Bikes of 12/14/16/18/20 Inch

INSTALLATION NOTES: 1.Insert bolt through the wheel, washer and training wheel arm. 2.Attach and tighten washer and nut, you will require two wrenches to tighten this propeily. 3.Remove rear axle nut from the bicycle wheel axle. 4.Insert axle though locking brace and fix the raised point to the bicycle frame ends . 5.Determine desired height of training wheels when attached the training wheels should have about 0.5-1cm (1/5 to 3/5in) space from the ground. 6.Tighten axle nut with adjustable wrench . 7.Repeat for another suide.Specification: ✔ Material: Steel + Plastics + Rubber ✔Color: Blue ,Black, Red,White, Purple, Rose ✔Size: Wheel: 4.54 inch*4.54 inch*0.98 inch /11.5cm *11.5cm*2.5cm ✔Fit: 12-20 inch Bicycles

• ☆Wheels diameter:4.54 inch. Universal training wheels fits for 12/14/16/18/20 inch bicycles. Tips: For Single Speed Bikes Only (Cannot Be Installed On Bikes with Derailleurs) and Supports Riders up to 70 Pounds .
• ☆These bicycle training wheels are made of high quality plastic and rubber which it is anti-slip, wear resistant, providing stability and help to ride a bike without fear. Light weight and noiseless.
• ☆This is a training wheel that can shine. When the wheel touches the ground, it will flash.
• ☆Before installation, please measure the extension length of the central axle of your bicycle's rear wheel to ensure it exceeds 0.4 inch, as this is necessary for installing the training wheels.After the installation is complete, make sure that the bottom of each training wheel is within 1 inch of the ground is reasonable.
• ☆Note: Ensure safety before riding.And children must learn to ride a bike under the supervision of their guardians.