mammygol adjustable inline skates for kids with light up wheels,flashing beginner roller skates for boys and girls size 1-4 mammygol mammygol has been committed to provide professinal and good-quality children riding products and perfect after-sales service system.we'll strive through the fashion design concept,advanced manufacturing technology,strict quality management,to create world-renowned of "mammygol" children indoor/outdoor game sets.<br>this inline skate is designed to take the beginner to the next level with a comfortable and stable skate.<br><br><b>size</b><br> we highly suggest choosing the size according to your kid's foot length, for size may vary among different brands. please check the size again with our size chart before ordering.<br><br><b>what you get</b><br>a pair of skates,carry bag*1,allen wrench*1,tags type specification*1<br>*all your question or problem with our service or products, you can contact us,and we will help you.<br><br><b>details</b><br>-adjustable size for your kid's growing foot<br>-grade abec-7 bearings<br>-chassis:aluminium alloy<br>-76mm urethane speed formula wheel (pu)<br>-triple cam-lever buckles provide a secure fit and easy on/off.<br>-frame made of reinforced nylon<br>-soft liner provides good sweat absorbent ability, extra padding in the front prevent kid's toes from hurting.<br><br><b>before trying</b><br>1. wiggle each wheel to check axle tightness. if bolts/screws that secure the wheels are loose, tighten them with the allen wrench included in the box. <br>2. wear one pair of athletic socks. skates should fit securely without being too tight or uncomfortable.<br><br><b>maintenance</b><br>- to adjust the size press and hold the white button on the side of the skate, pull the front of the shoe as needed <br>- to maximize the lifespan of your skates, rotate the wheels every 4 weeks<br>- to rotate the wheels use allen key (included) <br>- to ensure a smooth ride, lubricate the bearings every 4 weeks <br>- to clean the outer surface, use a damp cloth with soap