Fits most HP models which has plastic ball

4 plugs per package  (1x Black, 1x Cyan, 1x Magenta, 1x Yellow)

• OD: 4 mm
• Length: 6 mm

Outside diameter (OD) is 4mm. 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 long life
Easy removal for refill in the future

BCH is a registered trademark of BCH Technologies LLC, USA, and distributed by licensed resellers listed on www.bchtechnologies.com. Any counterfeit or illegal distribution of BCH products is prosecutable by the law.