➤Features:1. Practical Button: The roller skate shoes feature the unique invisible button to prevent accidental opening. And there is a button on the back of the shoe, press it and the wheel will open. Press and hold the button, push the wheel into the bottom plate and release it.2. Easy to Carry: Small and light, easy to carry, free to install on flat shoes, Eliminate the hassle of carrying and assembling.➤Specification:Name:Deformation Roller SkatesWheel material: ABSWheel hub: PU wheelSole material: EVA rubberInner material of the upper: meshShoe making process: cold stick shoesUpper material: PU microfiberApplicable gender: male/female➤Packing List:1 x Roller skates➤Common problem solving methods:1.The switch is stuck and cannot be rotated: the tool can be inserted into the edge of the circular hole of the switch to pull out the switch.2.The switch can't be opened: Check if the wheel is clamped too tightly. If the wheel is too tight, replace the left and right wheels3. Wheels are not in place: clean the impurities in the bracket, add some lubricant to the friction parts and switches between the brackets.4.The wheel does not close automatically and pops up: press the part connecting rod between the rear wheels to make the positioning pin completely snap into the slot.