This is a Flying Disc paper toy as a bulging convex lens when seen from the side, designed by canon papercraft. Throw it to make it fly softly through the air. Use it in a wide open space, for playing catch with your family and friends! The colors change when it spins, so it's fun to look at.
You can download this paper toy from here: Canon Papercraft - Flying Disc (Lens Shape) Paper Toy Free Download