Gopro zipline

You will need
3 wheels
3 axles
2 bodies
1 gopro mount

Step 1:
Stick the three axles into the holes of one of the bodies. The axles should stick out in the same direction as the bricks on the bodies.

Step 2:
Put the wheels on the axles

Step 3:
Apply some glue to the blocks on one of the bodies. Line up the axles and glue both pieces together. (if you find that your axles can slide out, apply some glue on the outsides of the holes to keep them in place)

Step 4:
After it has finished drying, line up the GoPro clip on bottom. Glue it on in any direction