Lixit Glass Water Bottle 8 Oz Water Bottles to Protect your bird's health and vitality. Provides fresh, clean drinking water. Easily attaches to outside of cage. Stainless Steel Tips are Available in Standard Tips & Tuff Tips. Water stays fresh, clean and sanitary. Durable, thick wall glass bottle that is Dishwasher safe. One-piece tube cap with ultra vacuum seal. Stainless steel tube with double Ball-Point tip. Deluxe spring with Quick connect Clips. Small (5/16 inch)-Canaries; Cockatiels; Parakeets;Finches; Similar size Birds. Medium (7/16 inch)-Conures; Quakers; Senegals; Amazons; Similar size birds. Large (5/8 inch)-Macaws; Cockatoos; Large African Grays; Similar size Birds. THIS LISTING IS FOR THE SIZE, COLOR AND STYLE IN THE LISTING TITLE.