The Lixit Heavy Duty Deluxe Glass Water Bottles are perfect for any animal lover or pet parent. These bottles are made of high-quality glass and are BPA free, making them safe for use around pets and even children. They feature a large nozzle that is ideal for large birds, and even small dogs. The bottles are easy to install on wire cages and are quick to remove for refilling and cleaning. They also have a durable design that will last for years to come.