Universal CANON Print head unclog suction ToolFor Canon PG40 CL41 PG830 CL831 PG810 CL811, PG-47/48/49/89/145/245/445/545/645/745/845/945; CL-57/58/59/99/146/246/346/446/546/646/746/846/946;BC-345/346 etc....We can not collect all models here. you can choose this refill tool if you confirm your ink cartridge same size to any of these models.Functions:- clear the nozzle, solving cartridge nozzle clogging problem;- use for making the ink cartridge to be vacuum (DIY CISS).How to use:Put the cartridge into the ink suction tool, and then draw ink from the ink suction pad with a syringe(without needle).there are 2 ink suction pad, those with one hole is generally for black cartridge, while those two holes is for color cartridge.What is included? Suction with syringe - 1 pcs x Clip- 1 pcs x Rubber pads- 1 pcs x Syringe (10ml)What is included? Suction with syringe - 1 pcs x Clip- 1 pcs x Rubber pads