Build two of the most popular micro monster trucks in Monster Jam® - Grave Digger® and Avenger! Each set comes with 44 parts, including a durable body shell that works within the K'NEX system. There is also working suspension and big, chunky tires! Authentic graphics recreate the look of each character. You can even use the wedge-shaped box as a ramp! Step-by-step building instructions included. Recommended for builders ages 5