Trying to arrange a nice evening at home for the holidays? Jigsaw puzzles are a great way to spend your free time with friends and family, at the same time providing you with a great brain exercise. They also make for a perfect birthday or Christmas gift. Trefl jigsaw puzzles are produced in Poland using natural materials only. The special paper with a flax fiber structure reduces the light reflection and makes them easy to use, giving you even more joy.