Teaching your child to ride a bike? These blue training wheels are here to save the day (and probably prevent a few tears too)! Designed to fit 12-20 inch kids' bikes, they grow with your child - just adjust them as needed for different bicycle sizes. The plastic and iron construction is sturdy enough to provide real stability without adding too much weight. Watching your kid gain confidence as they learn to balance is priceless, and these wheels make the process so much safer and less scary for everyone involved. The included fittings make installation super simple - no special tools or mechanical skills required. Seriously, within minutes you can have these secured and ready to go. They provide just enough support to prevent major wipeouts while still letting kids get a feel for balancing on two wheels. The blue color looks great on most bikes, and the durable design means they'll last through multiple kids. Learning to ride should be fun, not frightening, and these training wheels deliver exactly that!