Overall a very good keychain pill carrier. A close to perfect balance of capacity and compactness. Some issues.
There are a lot of keychain pill carriers for sale on Amazon. The reason I picked this one over the others is that it is not too big to easily carry on my keychain AND not too small to carry some bigger pills. It also looked durable.<br /><br />Pros:<br />This thing is about half an inch longer and around 1/5 of in inch wider diameter than the keychain pill container you can pick up at CVS. And that is a very good size for those of us who have to carry around larger pills. I can now carry four or five of the larger pills with me instead of two, and there's still room left over for about four or six medium sized pills or even more small pills.<br /><br />The slightly larger diameter is great too. My old CVS pill carrier lid happened to be the exact perfect inner diameter to sometimes get an average sized gel capsule stuck inside it. The pill would often be stuck so tight I would have to dig it with my keys, which would occasionally break the capsule, causing tiny spheres of medication to go everywhere. Yuck!<br /><br />But that's not the case with this pill carrier! No capsules or pills stuck in the lid, at least no pills that I take.<br /><br />It also feels nice and solid. I have dunked it in the sink enough times to be confident it is waterproof.<br /><br />So, why only four stars?<br /><br />Cons:<br /><br />The main issue: the way the top is threaded is a bit subpar, at least with the one I got, which I don't know is typical.<br /><br />When screwing the lid back on it's a little bit of a hassle to line the lid up perfectly with the body to get the threads started. Also, the threads squeak and sometimes bind, making me paranoid I'm cross threading the lid. A little olive oil on the threads mostly took care of the squeaking and binding. I'm not sure how often I'll have to re-apply to keep the threads feeling kinda-sorta smooth with only a few squeaks.<br /><br />*****  BTW, if you lube the threads like me DO NOT use WD-40 or some other oil not safe for consumption. Non food oils will no doubt &#34;work&#34; better, but no matter how carefully you apply that oil some if it is going to end up on your pills, and then in you.  *****<br /><br />Overall, I'm concerned that sooner or later I'm going to screw up this pill carrier by cross threading the lid.<br /><br />Maybe the lid thread issue has to do with the titanium metal-- though I doubt it.<br /><br />Maybe I just got one with improperly machined threads.<br /><br />Also, the lid's O-ring looks really thin. It could be fine and last a good long while, or it could end up tearing after a few months of regular use. I don't know, having had the canister for only a couple of weeks. I'll probably post a follow-up review six months or so from or this posting. If the O-ring does tear, I hope I can find another at a hardware store.<br /><br />Finally, I wish this pill container was just a tiny bit larger still-- say 5 or 6 mm longer and maybe an extra 2 or 3 mm in diameter. That would be make it enough to make it even more useful while still not so large it would be a hassle to keep on my keychain. With the current size I can ALMOST-- but not quite-- fit six of my large pills along with six of my medium capsules in it. If I could do that it would be perfect for me as I have to take two of both kinds of pill with my meals, and sometimes I have to be on the go all day.
Rating: 4 stars