XL Polydron Natural Colors Set | 36 Piece Large-Scale STEM Construction Toy with Squares & Triangles in Earth TonesEncourage large scale creativity and active exploration with the XL Polydron Natural Colors Set, a versatile construction system designed for young learners ages 2 years and up. Featuring calming earth tone colors, this engaging set blends seamlessly into both indoor classrooms and outdoor nature based play environments. This set includes 36 oversized interlocking pieces, made up of 12 squares with 16 holes, 12 squares with 4 holes, and 12 triangles,