Holds up well compared to other brands. Ships fast as well. Does not leak

I had messed up big time. I recently upgraded to a cart farmer gun and got one of thoe Vapebits and the bit vise to make for quicker filling and easier screwing on of the mouthpieces. I have been making carts for a few years and have been going through cartridge supply co. I found these for cheaper and decided to give them a try. Some how I had missed the instructions. You have to cap the cart right away and turn them upside down. I did not know that and had over 200 of them leak out the bottom and get clogged up. With other carts the bottom rubber piece has a little post in it that goes into the bottom hole on the cart similar to the rubber on the mouthpiece. I usually fill all 100 in a flat then put them in the vice that tightens the styrafoam so they can't spin then use the vape bit in a screw gun and it screws the caps on fairly nicely. With these carts you need to put the cap on immediately. I lost a good amount of rosin and even more time. What a mess. I emailed the company asking what I did wrong thinking they were faulty carts but I was operator error on my part. Quick customer service. Good company!!!

Great hardware, even better price. No issues with the 100 I got sent. Super fast shipping too.

PERFECT! Glass tubes, quality atomizer, SAFE DELIVERY, Never had broken shipment.
Do be CAREFUL not to over tighten. I had 1 out of 300 mouth pieces detach from the metal fastening bracket. That was on me, but worth mentioning.

Bought a couple hundred of these to throw some oil in and not one issue… they filled, work, and pull fantastic. Will definitely be purchasing from in the future