The Cardiff S-series 3-Wheel Skates are smooth, quiet and quick like inline skates and stable and easy to stop/stand like roller skates. This skates bring together the best of inline skates and strap-on roller skates and it will surely prove an exciting way to get everywhere. Unlike the typical rollerblades, Cardiff S-series 3-Wheel Skates feature the latest Tri-Skate Technology™, a three-wheel setup in delta formation with the fourth rear-centered wheel used exclusively for braking. The skate instantly adjusts to your shoe size by means of a spring-mount system – the front part of the skate slides back to grip the front of your shoe and keeps it tightly fixed as you skate on.