Instant purchase is OK. Please refrain from purchasing if you are looking for perfection, as this is handmade. This is a handmade drink holder. It is stretchy. It can be worn over the shoulder, and the length can be adjusted to your liking by adjusting the position of the metal fittings. The strap is removable, so you can replace it with your favorite strap. I have put a plastic bottle and a large tumbler in it, so please use it as a reference. It fits a Venti size from Starbucks perfectly. - Color: Blue - Material: Crochet - Usage: Drink holder