The easiest way to refill cartridges.
4 PCS Adapter Tip for refilling HP 932/933, 950/951, 960/961, 970/971 Cartridges
Can be put in front of regular syringes for tool-free easy refill.
Tip OD = 2.8 mm; Tip Length: 9 mm; Base ID = 4 mm; Base Length: 10...