Review on 🍯 24-Pack of Amber Glass Bottles - 15 ml (1/2 oz) Size - Equipped with Glass Eye Droppers by Brittney Shallenberger

EDIT/UPDATE: Having had them for a couple of months now, I urge anyone thinking of using them in perfumery, DON'T DO IT. They all have a very slow air release and over time you will find that your contents will eventually evaporate. I've only had them a few months and after the first California heat wave this weekend I've found that many of them have vaporized at least 25% of their contents in that weekend alone and everything in them is coming out the top where the rubber ball (now covered with crystals and oils on the outside). While they are very inexpensive, I wouldn't use them for "long term storage" of oil/alcohol. --------------------------------ALT: Excellent value for money I use them in perfumes, storage oils and fragrance chemicals in them. They're pretty tight. A good way to ensure this is to fill one half full and set it on a heater for about 10 minutes to warm up the contents. As soon as you open the top, you will feel a release of pressure and hear a "shhhhh" popping sound as it opens. Speaking of heat, they absorb heat really well and I haven't cracked or broken the jar when opening it. place them on heaters or hot surfaces such as heating pads, hotplates, etc. The only thing I noticed was the inconsistency in the drip tip opening. Some produce more juice than others in one drop. A good way to check this is to remove the rubber bulb at the end, fill the dropper completely with water and blow through (hold the dropper to your lips and blow through) and watch the water rush out. Now repeat the same with the other pipettes and you will find that some of them blow out easily, hard and hard while others are harder to blow out (smaller tip opening). But overall you can't beat them for the price. . I have already placed 3 orders for them and will continue to buy them.