HEAVY DUTY,WEAR-RESISTANT-the training wheels are built with a structural reinforcement design and high-quality plastic and rubber that makes them sturdy for a longer product life. By using thicker steel material ANTI-SLIP DESIGN-Our training wheels for kids bike have the function of slip-proof and noise-free for a safer, easier ride, so that your child can be safer and smoother when riding, without any worry or fear. STABILITY & SAFETY-Your childs safety is our #1 concern.Thats why we made our heavy duty training wheels with special attention to stability, The wheel design is thicker than the ordinary training wheel and added a small bracket that it's more stable,for your peace of mind. EASY TO INSTALL - Our bike training wheels can be installed onto your child’s bike quickly and simply. it can be adjusted at any time according to the skills and levels of the trainee.Not for Huffy brand bikes. WARRANTY&QUALITY CONTROL- quality control team ensures you get the same high quality bicycle training wheels. We will also provide you with the utmost professional solution and customer service.