This is a brand new 500ml water bottle shaped like a soy sauce fish container! I have never even adjusted the straps. If you fill it with soda or tea it will give it an authentic look! This is beyond cute and silly. I just never had a chance to use it. 
It can store liquids from 0℃ to 40℃. According to the shop that sells the bottle, "Don't add hot water or the fish will die!"