Ollyball was created by a family that dared to "Play Ball in the House!" The Ollyball was designed for full-speed, full-force indoor play! The ball weighs less than an ounce and absorbs shock through a patented KrunchCOR® construction! Play ball in the house in any weather, day or night! Hit crazy spin shots and even color your Ollyball with crayons and most markers! Also great for Soccer and Volleyball practice in the house!