universal training wheels are suitable for 12/ 14/ 16/ 18/ 20/ inch single-speed bicycles for children,But not suitable for variable speed bicycles Wear-resistant Materials and High-quality ABS wheels, and high-quality steel frame,provide the necessary security and stability which it needs in the first road tests on the bike,Support riders weighing no more than 100 pounds.Gives your child the best start to gaining their balance and confidence without holding the back of the saddle Anti-slip,noise-free, It's a great starter package for your child’s first bike lesson. biggest size suitable training wheels for 20 inch bike we offer complete installation tools.you have more options to adjust the height, so it's easy for you to install the training wheel on your bike quickly. EASY TO INSTALL: offer complete installation tools (2 x Bolts, 2 x Big Screw Washers, 2 x Small Screw Washers, 2 x Locking Nuts, 2 x Limit Spacer, 1 x Wrench, 1 x Socket Wrench), 1 installation manual,1 bicycle bell.so it's easy for you to quickly install the training wheel on your bike
