This machine dispenses by weight and it only goes to 50 grams. For small, precise portions it really does well. But, though failure to understand this is on me for not reading and thinking carefully, the 50g upper limit is quite constricting. I ordered this on Vine and I grabbed it on a lark because I've bought Pelikan ink in bulk from Amazon and then subdivided it to give away along with fountain pens I give away. But 50g is less than two ounces, and that's not enough to fill a typical ink bottle. It is enough to fill small plastic sample bottles of ink, but nothing bigger. So I find this machine kind of useless for me. It works well for measuring out liquids up to 50g, but the 5-300g model is only $5 more and it's literally six times more useful. I wish I'd been able to get it.