Using high-quality Basswood Cardboard material, fine cutting is smooth and comfortable without hurting the hand and to ensure that each puzzle piece retains its factory cut shape for as long as possible.. The thickness of the single piece is 0.6 cm. After the patchwork is completed, it is a beautiful pattern that can be used as a wall decoration collectible. Jigsaw puzzles are made from 100% recycled, high quality puzzle board and are a joy to handle again and again. The unique stamping template is carefully crafted to enhance the occlusion of the puzzle and will not fall apart when rolling or lifting.