Attribute Block Attribute blocks sets include red, yellow and blue circles, hexagons, rectangles, squares and triangles. Attribute blocks are manipulative with different shapes, sizes, thicknesses and colors. Manipulative are objects that foster hands-on learning. Attribute blocks encourage logical thinking, problem solving and learning math vocabulary. The blocks are useful for early learners, but also work for more-advanced applications, such as symmetry, perimeter, area, tessellation and angles. Pack of 60 Pcs.