Frank Bee BPA Free Plastic Water Bottle is an incredibly durable wide-mouth plastic water bottle. The Frank Bee Water Bottle is made of a shatterproof BPA Free plastic material with ML measurement markings (up to 1000) on the side. This 1 Quart (32 oz) water bottle features a screw on cap that is attached to the bottle. Fits in Frank Bee MOLLE Water Bottle Holder.