Tachikara SSTB Soft Tetherball Rubber Imported This ball is sold and shipped deflated. Sof-T tetherball is manufactured with unique, rubber composition cover designed to provide softer play Enjoy improved touch on the ball and "string-free" game play Durable nylon rope and metal clip attached to recessed metal post Official size and weight; butyl bladder construction 24.8-inch circumference and 13-ounce weight