There are three tests to check if plastic is a Soft Plastic… (1) Soft plastic is any plastic that you can ball up into your hand like a baseball. If it doesn’t ball up into your hand, it is Hard Plastic. (2) Soft plastic does not sound crunchy. If it sounds crunchy, it is Flexible Packaging. (3) Do the Finger Test… if you can stick your finger through the plastic, it is Soft Plastic. If you can’t stick your finger through the plastic, it is Flexible Packaging.