A boot with many straps has two large wheels, one in the front, and one in the back.
A shoe with wheels attached like a robot¬
A very modern looking roller blade skate.
A single metal roller skate with two wheels on the front and back.
An empty boot on a motorized three wheel device.
Futuristic robotic looking silver and blue colored roller skates.
A silver, high-tech looking skate with large wheels.
A roller skate that's silver and black and has wide wheels.
A silver finish roller skate with wheel at both ends
A futuristic looking roller skate with large wheels.