We used paddle pop sticks and PVA glue to help it glue together in the process of building, we also used sand paper to smoothe out the edges of the paddle pop sticks. We used pliers to cut the sticks so it would mend to help build the bridge. We changed our deck becuase it kep falling apart and it wasnt the wright length. Madi and I found it a bit hard but some of it was quite easy.