Diamond PET Water Bottle Beautiful, but little out of ordinary. Cello PET bottles are manufactured by Japanese technology and is made of BPA free material. BPA free water bottle can be used directly to drink water or other liquids. It’s sleek and ergonomic design saves plenty of space in your refrigerator and in your bag as and when you carry it. Its design is sure to add a touch of sophistication to your bottle collection. You can not only use it to store water, but other liquids like soft-drinks, squashes etc. The bottles are not only tough in looks but it is also unbreakable and has a long life span.