1. Adjust the wheels so that they run freely. 2. Adjust the cushion's elasticity with the lock nut. 3, regular bearing lubrication, reduce sliding resistance. 4, beginners need to slide on the slope of a small slope, and gradually replace the different slope. 5. Do not slide on wet or rough surfaces. 6, replacement parts should be the same specifications as the original parts. 7. Children's scooter is very fast when taxiing. The player's response must be agile. Children under 8 should not skate. (Buy baby stroller, baby carriage wholesale, sales, find China Baby Vehicle Industry Network /, Tel 0551-82363313) Stainless Steel Pet Scissors,Pet Curved Cutting Scissors,Pet Safety Scissors,Pet Magasin Scissors Zhangjiagang Mister Tools Co., Ltd , https://www.msscissors.com