Learn basic shapes with these transparent, plastic attribute blocks and encourage the development of language skills. Children will develop language skills as they describe the attributes of these shapes in various shapes, sizes and colors. Encourage game play by handing students a piece and asking yes/no questions or design as many patterns as possible using only 1 color. Transparent Attribute Blocks are ideal for use on a light panel to explore attributes and color mixing. Circles have a diameter of 2.4" and 1.4". Each set includes 60 transparent, plastic geometric shapes, conveniently packaged in a storage jar with lid and carry handle.