Makes refilling bottles so easy and getting just the right amount out each time! No wasting more product then need be or spilling anymore. Only found 1 bottle so far it won't fit but I can make due with that since they fit everything else so far. Loved the first few I got, so ordered more! From a price standpoint you cannot beat them.

I bought this to try out on some P&B 1 gallon jugs I bought online. They are slightly smaller grooved than the jugs' thread, but manually pushing them to the left, seems to work. I also used this with the 128 oz opticlean jug, and it works flawlessly. The only downside, was I couldn't get one to fit on the Koch Chemie Gentle Snow Foam GSF 5 Liter bottle from Germany. I thought it was a nice touch that they drilled a hole on the close position, to prevent any stuck residue after dispensing. Will buy more if I upgrade from Bead Maker to Slipstream sealant.

I ordered 3 of these lids, and they work great! It's so much easier moving the product from gallon jugs to my spray bottles, not a drop spilled/wasted.