Eco-friendly and Fashionable: Flat Bottle helps to change the public's understanding of reusable water bottles, made of high-quality AS, PP, and silicone, durable and safe to use. Easy Carrying: Notebook Bottle is really convenient to carry, has 420ml and 350ml capacity that can fully meet your needs, as large as A5 or A6 paper. Novel Flat Design: Flat Water Bottle for Purse is light, thin, and strong, very suitable for you, your family, and your friends, designed with a square shape that is like a book. Widely Applicable: Flat Water Bottle is suitable for indoor and outdoor use, ideal for mountaineering, parties, and schools, easy to put into the schoolbag, backpack, briefcase, handbag, etc. Excellent Gift Ideas: Purse Water Bottle is a great gift for family, friends, lovers, etc, making you drink well and enjoy a healthy life, ideal for 's busy but healthy lifestyle.