Shapes, sizes and relationships are fun to learn with these colorful geometric pieces. Plastic pieces are perfect for individual or small-group use. Set includes triangular prism, cube, cone, cylinder, rectangular prism, hexagonal prism, triangular pyramid, square pyramid and teaching guide. Designed for children ages 5 and up. • Teach shapes, sizes and relationships with colorful plastic geometric pieces. • Includes four sizes of eight shapes: triangular prism, cube, cone, cylinder, rectangular prism, hexagonal prism, triangular pyramid and square pyramid. • Perfect for individuals or small groups. • Includes activity guide. It just got easier to teach shapes, sizes and relationships with Mini GeoSolids®. These colorful plastic geometric pieces include four different sizes of eight shapes: triangular prism, cube, cone, cylinder, rectangular prism, hexagonal prism, triangular pyramid and square pyramid. Perfect for individual or small-group use. Includes Activity Guide. Each shape measures 0.5" to 1.75". Designed for children ages 5 and up. Subject Area: Mathematics; Specific Subject: Geometry; Age Recommendation: Ages 5 and Up; Grades: Grades K to 5.