The Skates turn any pair of shoes into a pair of flashing roller skates! The multi-color LEDs will create a blaze of bright color as you zoom around. The skate have wheels that use a patented magnetic flashing-light technology that does not require batteries. The simple motion of the rolling of the wheels is all it takes to power the LEDs brightly. The lights stop automatically whenever you are not in motion. The magnetic power means the lights will last a lifetime of use without ever needing batteries! Just adjust the size to fit your shoe with the included small hexagonal screwdriver, strap the skates on and ZOOM... youre on your way! Dualeez is great exercise and super fun! They are perfect for zipping between classes or commuting to work, since they can be easily removed and thrown in a bag without needing to change shoes. Since they strap to the rear of your shoes and the width is easily adjustable, your child will never grow out of them, something that can't be said of normal skate shoes! Strong enough and adjustable enough to fit any adult shoe sizes too. Suitable for children ages 6 and up. Be sure to follow important safety instructions. The plastic body of the skates comes in assorted solid colors.