Although I purchased by mistake, it is purchased for a ballpoint pen with a cap (gel ball pen Hyper gel) that was surprisingly good. It is troublesome with a cap, but I recommend it to the Zebra party.
Although it is cheap also on the main body, it is thankful that we still sell the replacement core. I feel a waste to throw away the main body. Actually I wanted a knock ceremony, but the replacement core of blue ink has something different in number of arrival days. But I really appreciate it, it's comfortable to use and comfortable to write. Ship everything quickly, shipping prices, too. It is a convenient shop.