I took it out of the box to check the contents, but it's unused! Leak-proof spare straws for 240ml and 340ml bottles, made by Combi. - Brand: Combi - Model Name: Leak-proof Straws for 240ml & 340ml - Intended Use: Spare straws - Made in: Japan - Suitable Age: 6 months and up - Heat Resistance: 140°C - Cold Resistance: -30°C Thank you for looking.