Tactiv® 螺栓式原子筆 | 100% 防水 | 堅固握把

The copper accents give it a nice heft in the hand, and the rugged grip actually feels secure even with damp fingers. I’ve carried it through a downpour and it wrote perfectly afterward, which is exactly why I bought it.

The bolt-action mechanism is surprisingly smooth and satisfying to fidget with, and the machined aluminum body feels solid without being heavy. I’ve carried it through a rainy week and it’s held up perfectly, no rust or sticking at all.

The bolt-action mechanism is so satisfying to fidget with during meetings, and the copper grip section adds a nice heft that feels solid in hand. I've already dropped it on concrete twice and there's not a single scratch worth mentioning.