Features: Safe, environmentally friendly and healthier, the bottle does not contain BPA toxic substances, food safety brand silicone, please rest assured to use Natural fragrance, the deodorant bag is made of recycled material, safe and durable. The concept of retronasal olfaction, when you smell something through your nose, it travels through your throat to the olfactory center of your nose, where it manifests as taste in your brain. 80% of the tastes you experience are actually what you smell, even though water itself has no taste. Make plain water in the bottle taste like your favorite flavors without any of the traditional additives found in traditionally flavored drinks. Specification: Material: plastic + silicone Dimensions: as picture shown Color: as picture shown Package Includes: 1pc Notes: Please allow minor errors due to manual measurement. The colors may be a little difference for the different monitor display.