6 Pack - Empty Roll on Glass Bottles [Stainless Steel Roller] 10ml Refillable Color Roll On for Fragrance Essential Oil - Metal Chrome Roller Ball - 10 ml 1/3 oz - Frosted Blue Color

These are working out pretty darned well for me. My recipes have some solvent-like agents as well as oil extracts, and the steel ball jars are (obviously) working out better than any of the plastic ball ones (only can use the plastic ball ones for rapid use recipes as the solvents will otherwise work too hard on them over time). ANY ball heads on ANY jars I have bought from anyone -tend to be slightly leaky, so the concern will be how well the top/cover stays on and prevents leakage -which should be adequate in this case, but don't expect too much. By leaky I don't mean flowing out when tipped, but rather allowing fluids to escape when you shake it (for instance). So i imagine if it shakes a lot while in transit, fluid will get into the capped area, and perhaps seep out. I would say these come "as advertised", and are good quality.

I love the color of these roll-on glass bottles and there is a nice flow of liquid that comes out when using it, but I was disappointed to find ou that they leak. I've only filled up two bottles with essential oils. The first was shipped to a friend. When she received it, the bottle had lost half of its contents. The other made a mess in my purse. Unless you are planning on keeping these roll-on bottles on a shelf, I wouldn't recommend these.

These do work well for essential oil blends, but the covers do not fit correctly once the roller ball is in place. If you bump the cap it snaps out of place and while the cap doesn't come completely off, it is not firmly attached any longer. These will probably be safe sitting on bedside stand, desk or bathroom cupboard, but I would be wary of traveling with them as the cap could come off, exposing the roller and get oil everywhere.

I have only used two roller bottles so far. The first one worked fine when I started using it, but the roller ball fell out unexpectedly. I contacted the seller and they sent multiple replacements quickly. So far, so good. Praying it was a one time thing. Wondering if I screwed the lid on too tight? The part holding the metal ball is plastic. Maybe I cracked the plastic this way? I am trying not to crank down too hard on it now.

These are great for the most part. 1 of the roller tops had a bulge in the side and would not fit into the bottle(the reason for the 4 stars). Other than that one issue they are great little rollers for the price. We use them to make blends with essential oils.

The lids on mine are so tight, they are hard to turn and don't even go on all the way. The first lid was so difficult to get on that the entire vial broke in half, spilling out $25 worth of essential oils.

These bottles are really nice. A friend bought a set of amber bottles from Amazon and the quality was not quite as good as these. The roller ball top fits on much more better and the cap screws is nicer as well. I have yet to try and get a top off to refill but assume it's doable.

Good price but the majority of these I received leak. Which I have to keep them standing up in a cup. As I laid one down and all the contents leaked out. Not good considering the contents are expensive. Was hoping to be able to take these on vacation, but not going to be an option. 😔