The Libo Diminishing Triangles is a great addition to any Montessori teaching aid set. This high quality material is made from the highest grade of child safe materials, so you can be sure that your children are in safe hands. The fine finish and detailed shapes makes it a perfect choice for helping young children learn shape recognition and sorting skills. It’s ideal for toddlers who are just starting out on the Montessori journey, but can be enjoyed by a wide range of ages. The various sizes of triangles lets children explore smaller to bigger, as well as basic geometry concepts such as equilateral and right angled triangles, making it an incredibly versatile teaching aid. With their vibrant colors and smooth edges they will add extra fun to the learning process!