Melissa & Doug Sticker WOW!™ is a whole new way to play with stickers! Pop the convenient sticker stack of assorted favorite things stickers into any Sticker WOW!™ Sticker Stamper cartridge (sticker stamper not included), and stamp, stamp, stamp through mini pages (approximately 2.25 by 4.25 inches) of fun-filled favorite things-themed counting and matching activities. With 100 unique designs in the sticker stack, each sticker stamped is a surprise. Sticker WOW!™ refill stickers are not reusable but are easy to remove if necessary and are great for creative arts and crafts projects. Favorite Things refill stickers are a natural complement to the Unicorn and Ice Cream Sticker WOW!™ sticker stampers, but they are compatible with all the cute and collectible Sticker WOW!™ sticker stampers. Sticker WOW!™ (patent pending) promotes fine motor skills, encourages creative play, and it's satisfying, fidget fun! This product is certified by the Forest Stewardship Council. FSC certification ensures that products come from responsibly managed forests that provide environmental, social, and economic benefits, and that forests are protected for future generations. Please note that FSC certification applies to new inventory only (FSC C156584). Each set includes one 24-Page Mini Pad and 200 Stickers. Sold as a pack of 4 complete activity pad sets.