SimplySili labels are designed to fit most standard baby bootles, sippy cups, children water bottles, small food containers, and thermoses. To be precise, they would make a nice fit for bottles and containers within 18cm to 26cm circumference.
The labels can fit larger circumference, however do note that the engraved name will be stretched out.
Do note, they do not fit Dr.Brown's 4oz standard bottle or narrow neck bottles as they are too slim. They do fit standard 8oz bottles and other wide neck varieties.