SAIBANG Reusable Flat Plastic Water Bottle, Special Book Shape Design Plastic Memo Flat Portable Water Bottle A5-shaped Reusable BPA-Free Bottle, 2 Internal Capacity: 420ml, 750ml Made of High Clarity Food Safe Plastic, BPA-Free Bottle,Black Lids Leak Proof Water Bottle - Ideal for School, Sport, Office, Gym and Days Out Flat Square Design, Likes a book, Lightweight, Durable, Reusable and at a Great Price Easy to Use and Portable - Convenient to Put in Carrying Bags - Easy to Clean - Dishwasher Safe