4 mm Silicone Plugs for Ink Refill HP 88 564 920 940 950 932 XL (6 PCS)
Fits most HP models which has plastic ball
6 premium plugs per package
Outside diameter (OD) is 4mm and height is 6 mm. Fits most HP cartridges has a plastic ball for ink-filling spot
Drill a hole or use a nail and hammer knock the ball inside, refill then plug the hole
Premium grade silicone guarantees a tight seal and longlife
Easy removevall for refill in the future
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