“Soy ink is a kind of Ink made from Soybeans. As opposed to traditional Petroleum-based ink...Soy based ink
“Refillable pens are pens that you can refill with any kind of ink (such as soy based ink) to...Refillable pen
“An electronic ticket (commonly abbreviated as e-ticket) is a digital ticket. It may be issued by...Electronic ticket
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- Energy Star logo.svg