Suitable for 3 months to 3 years old children. These textured fabrics and bright colors help to develop children's sensory awareness. Special cloth design is durable and not easily be torn. Children love the colorful photographs and soft pages. This appealing series will entertain children while giving them a head start on learning. The size of the book fits an adult's palm, and weigh very little. Front and back cover of each book are presented with sound paper (feels has a plastic rustling of paper sound, the main function is to attract baby's attention). This small book is made of high quality cotton and high-quality interlayer is sponge (pinch up very soft). Each little book, even front and back covers a total of 8 per page, has a separate pattern. These pictures will help the baby to know, at an early age, this colorful world! This soft book is the perfect bedtime story for the little ones. The books can be stored away neatly in the drawstring bag, that is shipped with books, when not in use. Personalize each of three lines with up to twelve characters of choice.