Epic thrills are right on track with the Rapid Launcher Accelerators—part of the Hot Wheels® Track Builder System. Give your track set a speed boost when you connect them to existing sets to expand your system! Send your car flying down the straightaway with this awesome accessory. The possibilities are endless with open system play! Even the package enhances play— it's a perforated box with tips for creating rams, track connectors, tunnels, brick walls, targets and fire pits! Enhance builds with household items like red cups, Mega Bloks® and paper tubes. Includes a Hot Wheels® vehicle and bricks! Each sold separately, subject to availability. Colors and decorations may vary.