Check the listing for details. 144 PLASTIC TANGRAM / PATTERN BLOCKS - Manipulatives (6 different shapes/colors). Condition: Used. Listed at 21.99 USD. 144 TANGRAM / PATTERN BLOCKS - Math Manipulatives 1/2 cm thick, more textured than the shiny, slick pattern blocks. Could be easier for small fingers to hold. 6 different colors/shapes: 7 yellow hexagon shapes 18 red trapezoid shapes 27 blue rhombus shapes 24 white diamond shapes 21 green triangle shapes 9 blue square shapes 11 red square shapes 12 green square shapes 4 yellow square shapes 11 orange square shapes EXCELLENT RESOURCE FOR PARENTS, HOMESCHOOLERS, TUTORS, TEACHERS... **These blocks are awesome for learning how different shapes can be combined to make other shapes! It is a great help when children are learning about geometry, to actually have hands-on materials to manipulate into different shapes!**They are also fun for designing and learning about patterns! **Kids (and sometimes adults ;-) will love playing with the shapes and making various designs! Then, you can discover all the squares, triangles, etc. in your designs!**Easy to clean! These materials were purchased from a school district's surplus sale. We ship within 1-2 business days of receiving payment. Thank you!