Are you worried about teaching your child ride a bike? These training wheels will gurantee the security and stability which is neccesary in the first ride training on the bike. Gives children the best start to develop their balance and confidence without holding the back of the saddle.Perfect bicycle accessories for those who are not skilled at cycling or afraid of falling;Adopt 5082 high-speed bearing, sturdy and durable, and it can realize height adjustment.Made of premium strong metal material which can bear heavy children without security problems.With all neccesary parts and clear installation instructions, these wheels are easy to install.Cool glowing design when riding, rise kid's interest in learning bicycle;Suitable for 12-20in children bicycle.Weight: 560gcolour: blueMaterial: metal + plasticsize: 24 x 13 x 3.5 cmPackage Contents: 2 x Clispeed Auxiliary Training Wheels1 x pack of screwsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.