Generic AstrocapsNY Popper Topper Leakproof Aroma Bottle Cap - Black USA Sized 19.5mm Thread

I've tried similar products but this one feels the most solid. Works as advertised. The cap is extremely secure and will not leak anything when closed.

I have had this only a few months and when I went to change the bottle the inside piece with the grooves came out and caused me to spill the bottle. Piece of crap and not worth the money at all.

Easy to use, will work for some bottles, others not so be sure to pay attention to what you buy vs what this will thread to. Fits easily into nostrils and close for non use. Best fit and function so far!

The plastic is too fragile. If u do not pay attention, u will easily break it even when u r twisting it around the bottle. It leaks easily so keep the bottle standing all the time. No shaking or it will leak big time! Do not leave this inhaler all the time but replace it with the true cap when game over. The open/close mechanism was hard but soften with a bit of lubricant 🙃 Too expensive for the quality. Too bad the store does not deliver other models to Canada

Came very quick and as described! Perfectly what I was looking for! The description was very accurate! No more burned nose! The reason I gave 3 Stars is because it broke at first use, I probably put too much pressure to close it, so I WOULD RECOMMEND TO NOT CLOSE IT TOO TIGHT! BE GENTLE!

The Astro Cap does work as intended and fits securely on bottle threads, with multiple sizes available for convenience if you own different bottles. However, the quality is where it falls short. I purchased this cap a few months ago, and recently, it began to fall apart, becoming unusable and beyond repair. This seems to stem from the low-quality 3D-printed material used in its construction. I’ve tried reaching out to the seller several times through their website to address these issues but have yet to receive a response. Ultimately, you’re paying for a piece of plastic that, based on my experience, won’t hold up to regular use for more than a few months. For the price, the durability just isn’t there.

Works well, easy to use, no spills

This is super easy to use, and fits right on. There is a LITTLE leakage, just just have to be careful and be sure the seal is all the way closed.