Instant purchase is OK. Used a few times, but the ink is mostly full (black is about 80% remaining). Please purchase only if you understand. Black: Straight Tea scent Blue: Milk Tea scent Yellow: Lemon Tea scent Red: Apple Tea scent Orange: Valencia Orange Tea scent Scented Sarasa Scented Pen Lipton Collaboration Lipton ZEBRA SARASA CLIP Lipton Collaboration Pen function/material: Water-based ink, knock type Writing instrument type: Ballpoint pen