Our Jig-Saw Puzzles are fitted into several catagories so you, the customer, can find the one you are looking for easier. There are easy ones and hard ones, but whatever your skill level is you are sure to find a jig-saw puzzle to keep you busy and entertained. The jig-saw puzzles are made of Ponderosa White Pine and finished with a non-toxic, lead-free stain so it's safe for children of all ages.