BLACK Premium Inkjet Ink Refill (510ml) 18oz Made in USA Only Stratitec and DatatekUSA sell this product. There are no authorized re-sellers. Please watch for counterfeits. Trust the brand! Stratitec ink is proudly made in the USA and has been since 2000 Specially-formulated universal ink that works in all printer brands and all inkjet cartridges Multiple refills offer a low-cost alternative to high-priced cartridges This ink product is used to refill OEM inkjet printer cartridges or to fill refillable cartridges