Ollie Ultra Tires by Sphero. Unbeatable traction for all types of terrain. Removable so you can customize your look Perfect for off-road driving For ages 8 and up Upgrade to the best of both worlds. When you need off-road capabilities and on-road performance, Ultra Tires perform. No matter what the terrain, slip on these tires for unbeatable performance, and then remove them for drift racing on smooth surfaces. Make a statement before and after the race. Order your Ollie Ultra Tires from Brookstone today!