Teaser Ball IT's Really Big 10 inch diameter over 16 inch circumference Famous for it's Erratic Motion! Unique ball-within-a-ball design keeps pets on their toes and holds their attention for hours! The Teaser Ball floats for summertime fun, and is extra-durable for long lasting use. Non-toxic plastic is puncture resistant and safe for everyone. Available in: 4.5? Teaser Ball 6? Teaser Ball 8? Teaser Ball 10? Teaser Ball