Description This one is a puzzle for adults and children. It helps to train the brain, increase concentration, patience and strengthen practical and interactive skills. For people of all ages! Develop children's patience and focus reduce pressure in adults. Functions Color: Transparent. Material: Acrylic. Size: 44,50X33,50X0,20cm / 17,49X13,17X0,08 in. Our puzzle pieces are made of the highest quality acrylic, well trimmed and fit together very well Completing the puzzle will not only allow you to stay alone, but also allow you to spend time with your family. Suitable for adults and children, it can be a nice birthday or Christmas gift for a friend, family or for you. It helps to train the brain, improve concentration, and enhance practical skills and interaction skills. It can also be a great educational toy, teaching aids for scientific projects at school. packets 300 puzzles