The oem ceramic bucket has a rim that fits over the atomizer. These dont have that meaning concentrate can leak on to the atomizer.
I got the thicker one. Takes a little extra time tk heat up, but once you get used to it works great. Also dropped it on a tile floor and not even a scratch.
I really recommend getting one of these if you have a puffco. It really enhanced the experience over the ceramic bowls and this is also way easier to clean and maintain.
In the low class of quartz inserts. Not compared to the upscale Sic/Ruby/S-tier class, this one is a Fantastic one, as it produces a large cloud & it Taste enhances your product, compared to the ceramic one peak comes with. Not to mention The price point is perfect, therefore after the latter points and what you get for your mula, this is One insert is Highly recommended. Perfection all around!!!