Webetop Kids Lighted Heel Skate Rollers Adjustable Two Wheels Skate Shoes Scooters,One Size Fits Most,60KG Weight Limited,with Portable Bag and Mini Wrench for Adjusting Size Tricks of keeping strap clipped: wear it on, press clasp down, then the clasp will stay clipped firmly! One size fits all, you can adjust the size through the middle screw/ Suitable for children above 6 year old : weight below 60KG(132 lb) Lightweight, it can easily be installed on flat shoes, shoelace convenient to install and remove. Easy to control the center of the body, good for beginner leaning. Wheels are resilient, we can play on the road, ramp, stairs and any place with masses people is prohibited. Elastic safety clasp, each wheel with three flash, will shine accompanied by sliding. The bottom use double iron panel fixed, firm and durable. Without battery