Using the Play - Doh Fun Factory Starter Set is easy. First, take one of the 3 cans of play - doh in red, blue, or yellow. Put the play - doh into the Fun Factory tool. You can then choose one of the 10 different shapes by attaching one of the 2 rail accessories to the front of the playset. Squeeze the tool to get the play - doh out in the desired shape. You can use the knife and roller accessories to customize your creations. Remember, this product contains wheat. Keep the rail accessories in the storage space on top of the Fun Factory machine to avoid losing them. After playing, close the play - doh cans tightly to keep the play - doh fresh. Store the whole set in a cool and dry place to maintain its quality.