Didax Two-Sided Geoboard

7x7" plastic Geoboard features a 25-pin square array on one side and a 25-pin circle array on the other, plus 4 corner pins. Sturdy pins are shaped to retain rubber bands (included) on the pins. Each pin on the square side is imprinted with a letter and a number grid appears both horizontally and vertically. Grades 3-8.