Item number 180 If you'd like to purchase this with other items, please feel free to comment. Depending on the items, I may offer a discount and ship them together. In that case, it would be helpful if you could comment with something like "I'd like to purchase with item number ○." Thank you. This is an 80ml water bottle for small animals, easy to install and convenient. - Model: Multi Bottle 80 - Capacity: 80ml - Applicable Animals: Small creatures (e.g., hamsters) - How to Use: Easy to install Thank you for looking.