If you're like me, you buy a fair amount of sample spools which are normally 250 grams. They are great for small projects where you don't want to buy an entire roll. However, they do not work in the AMS and rewinding them on another spool is just a pain and time consuming so here is my solution to this problem. With this adapter it securely holds your new 250 gram mini spool securely in the AMS and works just like a normal size spool. Happy printing.