Refill the Melissa & Doug Sticker WOW!® Olive the Dinosaur sticker stamper (not included) with 300 dinosaur and prehistoric-themed refill stickers, and stamp away, anywhere, anytime Includes 1 sticker stack of 300 stickers to refill Sticker WOW!® collectible sticker stamper (compatible with all Sticker WOW!® sticker stampers); just drop into a sticker stamper cartridge and stamp away 100 unique prehistoric-themed designs in every sticker stack, so each sticker that’s stamped is a surprise Sticker WOW!® stickers are not reusable, but they are easy to remove if necessary, making Sticker WOW!® a great mess-free travel activity, crafting tool, fidget play gadget, and collectible toy all in one; patent pending Makes a great gift for girls and boys, ages 3 to 7, for hands-on, screen-free, fidget-fun play