Features: Chew Resistant: Metal straw water bottles are designed to resist chewing and keep harmful plastics away from your animals. Simple to use: fill the bottle with water, plug the tap with your hand, shake the bottle up and down to expel the air in the bottle, for touch the tap with your fingertips, check the water is unobstructed, and finally install it on the cage. for Ideal for Many Animals: Rabbits, ferrets, chinchillas, guinea pigs and birds can use this drinker and are for ideal for many animals. Use this water bottle when you are not at home, don’for t worry that your lovely pets will overturn the basin and not drink water. Hanging drinking bottles, save worry and effort. Specifications: Material:Plastic L Size:Approx.13x4cm/5.12x1.57in,125ml S Size:Approx.9x4cm/3.54x1.57in,80ml Option Type:80ml Blue Pet Water Bottle;80ml Yellow Pet Water Bottle;80ml Red Pet Water Bottle; 80ml Green Pet Water Bottle;125ml Blue Pet Water Bottle;125ml Yellow Pet Water Bottle;125ml Red Pet Water Bottle;125ml Green Pet Water Bottle; Package Includes: 1x Pet Water Bottle note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.