The 500 box set was created for all puzzle lovers and aficionados. Are you looking for an idea for a nice evening at home? It's a great opportunity for friends and family to spend their free time and exercise their brains at the same time. Skazle Trefl was made in Poland from high quality recycled materials. The use of a special paper with a linen fibre structure reduces light reflections and makes layout easier, making it even more fun.