I found out about these bottles from Molly Sims Youtube channel. I was looking for a glass bottle option and this one seemed to fit the bill.
I always feel good about using them because they always look prestine and like brand new after washing. They are very lightweight and the measurements on the side of the bottle are a lifesaver (never buy a bottle without it!).
I first bought 1 pack but found out you need way more bottles than just two on rotation. I bought 2 more packs (6 bottles in total).