Most boards are in length. Widths vary from . Longboard are made in many shapes. These include pintails, swallowtails, flat-nose riders, drop-through decks, drop decks and boards with the same shape as a regular skateboard. Pintails have looser trucks and larger wheels. They are better suited for carving or a "smooth" feel. Drop decks and drop throughs let the rider be closer to the ground. This gives them a lower center of gravity which increases stability. This also makes the boards better for downhill racing. Mid-length boards, have many different uses. They have more weight and bulk. This makes them move with a fluid motion by providing more momentum. The longboard's design lets rider make big turns or quick short carves. These movements are similar to the motions of surfers or snowboarders.