The package contains all parts to put together 2 figures.
You will need besides the content of the bag: Dispersion adhesive (e.g. Hercules) or a glue gun.
1. Glue the big ball to the center of the big circle, in the way opening down. Glue a small ball to the center of the smaller circle also through the hole down. 2. Glue the half-balls on the white balls close together, plastic eyes on them. Glue the bigger eyes on a big fish, smaller ones on a small fish. Glue the mouth just under the eyes.
3. Glue the tail to the fish, a larger fin up, and little fins to the sides of the body.