I had been wanting to try reusable straws and I'm really happy with this purchase. There are 4 straws in their own individual case. Each case can be secured to your bag, belt, phone, etc. They each have their own individual cleaning brush, which I think is great because if you lose one case, you don't have to worry about not having a brush for the others. Receiving 4 of them allowed me to share with my friends! Great way to reduce our carbon footprint!