From Magna-Tiles®, this set features: Recommended use: for ages 3 years and up Translucent and brightly colored pieces 50 small squares 4 large squares 20 equilateral triangles 11 right triangles 15 isosceles triangles STEM-approved: Offering endless possibilities for young, imaginative thinkers, the magnetic blocks inspire hours of instruction-free playtime while helping children develop math, science, spatial, and tactile skills, and problem solving skills Comprised of tough plastic, strong ceramic magnets, and stainless-steel rivets, magnetic blocks are sonic welded to last for years to come made with food-grade ABS plastic that’s BPA-free and contains no latex or phthalates Package weight: approx. 7 lbs / 3.2 kg Package measurement: 12 x 3 x 9 inches Item measurement: each shape has a base measurement of 3 inches / 7.62 cm This set is compatible with all Magna-Tiles® sets  Imported.