Multiple flash modes: fast flash, slow flash, long flash - red, green, blue, purple, white, yellow, sky blue; 7 static colors, 10 flash modes, change as you wish.Hidden USB Charging: Red light indicates charging, charging 1-3 hours, LED light flashes 4-8 hours. Press and hold for 3 seconds to turn off. You can connect the USB cable from your computer or use your cell phone and other chargers.Closure: Hook and loopHeel height: 1.5 inches inchesHeel Type: Flat Heel Heel Type: Flat HeelShoe Width: Medium3 IN 1 REMOVABLE SKATE SHOE: Can be used as a two-wheeled shoe, a single-wheeled shoe (remove the front wheel and add a shoe cover), or a flat sneaker (press and hold the button on the back of the shoe to retract the rear wheel and remove the front wheel.)COOL DESIGN: Sleek printed uppers, convenient velcro straps, elasticized laces, platform measures approximately 1.5 inches.SAFE AND COMFORTABLE MATERIALS: stylish kids rollerblade shoes, smooth PU upper, waterproof TPR sole, non-toxic synthetic material. UNIQUE GIFT: Birthdays, shows, Halloween, Thanksgiving, Christmas and other celebrations