These officially-licensed cornhole game bean bags are constructed of a heavy-duty poplin blend of 65% polyester and 35% cotton sewn with an all-purpose, dual-duty, extra-strength thread. The bags are surged on three sides and then reversed out, and filled with 12 ounces of treated unpopped popcorn...a digestible particulate. Note that these bags are larger than the 9.5-ounce official Baggo game bean bags, so they are not for use with official Baggo games. For use with your wooden cornhole game only. Caution: Do not store your bags outside. Includes 4 bean bags of each color.