This is a special non-toxic, food grade formulation for kids. Soften with a hair dryer or in direct sunshine, mold or shape it, then harden in cool air. You can repeat this process indefinitely, providing hours of safe, wholesome fun.
The actual clay weighs 100 grams. Fedex ges a fee measured from the length x width h height of this product with its packaging which is why we put 200 grams which is a close estimate of the fee that fedex ges for its volume :)
NO EXPIRATION just heat under direct sunlight when it hardens