The Double Kick Tails in combination with the concave is a Hybrid design for skating everything. Park, Street, Distance, Hills, Cruise. Awesome control for Slides, Curbs and Coping! Each component has been designed and built to demanding specifications and then tested duringproduction to ensure consistently high quality. And a high quality ride at an entry-level price, this is a great choice for both beginners and price-conscious advanced skaters!