This set includes 6 geoboards in 6 colors and a pack of 120 elastic bands. These colorful, isometric geoboards are double-sided with an 11 x 11 pin grid array on both sides. Geoboards are a great way to visually and practically teach spatial and mathematical concepts. Explore and study geometry, perimeter, and area. The set also includes an activity guide. How many shapes can you make in three minutes? What is the largest pentagon you can create? || Size: 9" square.