Samsung ML-2010 / 25XX Series / SCX-4321/4521F refill bottle
Bottle of toner plus pouring spout to refill your Samsung ML-2010 family cartridge.
Right type of toner. Right weight of toner to go in with no spillage. Right yield: approx. 3,000 @ 5% A4.
Free PDF of instructions here
You get ....
bottle of toner,
NO-MESS pouring spout,
replacement toner plug