Manufactured exclusively for CMS with "Phthalate Free" non-PVC Plastic Materials, In 5 Bright Colors: Red, Yellow, Orange, Blue, Green ***** These balls were not manufactured by Intex ***** * Using a 2-stage blow molding process to ensure consistency of thickness & quality, each Ball will withstand up to 70 pounds of pressure. Guaranteed Crush-Proof or your Money Back. * Pack of 100 pieces 3.1" Air-Filled Soft Plastic Ball Pit Balls. Filled approximately 1.75 Cubic Feet of Volume * Great for any Ball Pit, Kiddie Pool, Playhouse, Playpen and/or Playcenter. * Shipped in Package of 100 Balls (Storage Bag Not Included). Beware of less expensive 2.5" balls, you would need twice the count of the smaller 2.5" balls in order to fill the same volume by 3.15" balls