LEGO Technic 42010 Off-Road Racer A great introduction to LEGO Technic building! Includes the first pull-back motor ever featured in a LEGO Technic building set ; Pull back, release and race! Features cool, colorful styling and pull-back motor Combine with the 42011 Race Car for a super-fast Dragster with pull-back motor, adjustable rear wing and opening cockpit Measures over 3" high, 7" long and 3" wide ; Dragster measures over 3" high, 11" long and 3" wide