Wiffle Ball Baseballs Official Size (12 PACK) Review SelfishJellyfish Toy Gift Sets February 8, 2018July 29, 2018Baby & Toddler Toys, Toys & Games, Wiffle 0 Comment Size:12 PACK Bulk Bundle Includes 12 Official Wiffle Balls! Wiffle balls are made of lightweight, durable plastic. These super safe Wiffle Balls are perfect for kids of all ages! For Ages 3 and up.