Review on 🧪 Aluminum Caps with Essential Oils - Complete with Pipette for Aromatherapy by Linda Nelson

I went through and didn't see any broken bottles/droppers and there are two 'already assembled' bottles in the kit so you can see how they fit (although it's not exactly a challenge). Of course, it took me some time to figure out how much force it takes to get the rubber piece into the lid, but after that I had no more problems with it. They seem to hold my argon oil samples with no problem, but I can't speak to thinner oils or alcohol-based products (like perfume). Not that they blew me away, but they are tiny vials that fit exactly what I bought. 3ml is a lot smaller than I thought so next time I'll probably have to buy some 5ml/10ml vials.