I talked to Rick and he said it holds a quart of plastic hand stirred and adjustable for any mold with a 3/16 to 3/4 in fill sprue. He has some serious mechanical skills. For the price you get alot in my opinion. The one in that video is mine(just need to pay him) but he want to show his Buddys first and then I will get it. Unless he has seperation anxiety. Looks like I will need more mold though.