For those who value peace of mind over price These are smooth-writing, highly cost-effective cross-type compatible refills. They are also compatible with Mitsubishi SK-8. Please give them a try! Cross-type compatible replacement refills Compatible with: Cross / UNI SK-8 Tip: Ballpoint Ink: Black or Blue or Red Writing Width: M Medium 0.7mm Size: Total length approx. 116mm Quantity: 3 pieces Price: 598 yen ◦ No discounts ・Basically, black will be sent. ・Blue and red changes and combinations are possible, so please consult. ・Changes cannot be made after the product has been shipped. Click here for Cross compatible products ↓ #cro_hana 【Product Description】 ・The black resin at the top is almost the same as the original, so there will be no problems with installation. ・The resin ball on the pen tip will be sent without being removed. ・Please remove the resin ball cleanly before use. ・In the unlikely event that it does not fit or does not feel right, we offer returns, so please rest assured. ・You will be responsible for the postage (110 yen) for returns. 【About Ink Expiration Date and Resin Balls】 The expiration date of ink is generally said to be 2 years. Unlike genuine products, compatible products do not have an expiration date, so it is unknown how much time has passed since they were received. Therefore, to minimize ink defects and allow you to use them to the end, we inspect and send the pen tips with the resin balls still attached. Please search the internet for "ballpoint pen refill expiration date" for a guide to the ink expiration date. 【Compatible Refills】 CROSS 8101, 8513, 8514, 8100, 8511, 8512 Blue, 8515, etc. Mitsubishi UNI SK-8 【Regarding Shipping】 There are very rare cases of people who do not understand standard mail shipping. We have described standard mail in our profile. Please read and understand it before purchasing. Cross ballpoint pen refill replacement core Cross type replacement core Cross refill ballpoint pen replacement core