Jumbo size - our 3u0026#39;u0026#39; balls are more than twice the size by volume if compared with 60mm 2.3u0026#34; ballsnAir-filled - durable, softness u0026amp; lightweight perfectly balanced for kids of all ages in home settingnNon-toxic - 100% virgin plastic, phthalate free, BPA free, lead free, non-PVC, non-recycled materialnQuality - unique 2-stage blow molding process for consistency in color; thickness and smooth seamsnCrush-proof - each ball will withstand 150 lbs. of body weight. Will give when squeezed, will return back to original shape when pressure is release. Not intended for commercial or pets use. Jumbo size - our true to size 3'' diameter balls are more than twice the size by volume if compared with any 60mm 2.3" balls. Size does matter, the larger the balls, the less balls will be needed. 150-200 of our jumbo 3" balls will perfectly filled a pack n play air-filled - each ball weighs in at 1/3 ounce or 9 grams which is twice the weight if compared with any 60mm 2.3" balls. Our balls are air-filled, durable and perfect softness suitable for younger children as well as older kids age 1 to 99 in an average home environment, non-toxic - built with 100% virgin PE plastic; phthalate free; BPA free; lead free; non-PVC; non-recycled material. We avoid using chemical additives such as UV inhibitor, color stabilizer, etc. These balls are the best u0026 safest balls for our younger generations. Quality - using a unique 2-stage blow molding process to ensure consistency in color; thickness; smooth seam u0026 surface. Each ball molded with the " My Balls by CMS " brand logo and production code to track and for quality control u0026 warranty purposes.