Size Chart —- J12-J13( 18-19CM / 7.08-7.48IN )—– 1-2( 19.5-20.5CM / 7.67-8.07IN )—– 3-4( 21–22.5CM / 8.26-8.85IN )—– 5-6( 23-23.5CM / 9.05-9.25IN )
Size Adjustment —-There is a pair of insoles in each package, you can choose to put the insole or without insole according to your comfort requirements.
8 WHEELS ILLUMINATING —-All wheels with illuminating colorful lights when skating with roller skates,and NO BATTERIES NEEDED!