《Immediate purchase is welcome!》 Jetstream 3-color ballpoint pen that lets you use black without hesitation ・Greige body ・Yellow-orange body Set of 2 ballpoint pens 0.5mm Black, Blue, Red. Knock the middle to use black without hesitation. Red and Blue use the same slide-knock mechanism as before. For the most frequently used black ink, the refill tube has been made thinner, increasing the ink volume by about 70% compared to the standard product, resulting in a "long-lasting refill". Writes smoothly with low writing resistance regardless of writing pressure or speed. Simple packaging.