Roller Shoes Retractable 4 Wheels - Gray and White Roller shoes with 4 retractable wheels. Convenient kick and go function to extend the wheels for skating. To retract the wheels, simply push in the button located at the back of the shoe and press the wheels inward. Turn the button clockwise to lock the wheels in place. Available size: 2, 3, 4, 5, 6 & 7