Sold as 3 sets, each 152-piece sticker set includes 4 foam sheets, each with 38 punch-out stickers in 17 different space-themed designs. These mess-free stickers don't require glue and are easy for little kids to push out of the foam sheet. Once a sticker is pushed out, it's easy to peel and stick! Create outer space scenes during craft time. Also personalize notebooks, water bottles and projects with these durable stickers! Crafting with space stickers contributes to the development of children's fine motor skills, hand-eye coordination and creative expression. The stickers are non-toxic. For ages 3+. Size of Sun: 2.75"L x 2.3"W. Size of small star: 0.6"L x 0.6"W. Sold as 3 sets for a total of 456 stickers. Recommended age 3+ years