C.R. Gibson Shapes, Colors and Numbers Chunky Board Books for Babies, 9 x 3 x 0.8 inches, 3 pieces Includes (3) baby books. Each measures 9 x 3 x 0.8 inches. This coordinated set of 3 books in the perfect size for tiny hands! Teach little ones 24 months or older about different colors, shapes, and numbers. This book set is gift boxed, and is a super cute early birthday or baby shower gift.