Contains: 30 pieces, including 2 wheelbase bases and big building blocks. Teach your children to stack and match with the MEGA BLOKS Build & Match Animal Tractor. This preschool building toy comes with 30 pieces, including 2 wheeled bases and big blocks to stack and match 8 farm animals and learn colours. Toddlers can let their imagination soar to build new animals by mixing and matching the blocks. Combine with other MEGA BLOKS sets to expand the fun! ADULT ASSEMBLY REQUIRED. Exercise caution when unpacking and assembling.