Handmade item. Attached using clay gel. Also coated. ¥700 for one. As this is a handmade item, it may come off. Please refrain from purchasing if you are concerned or have a sensitive disposition. Both are Jetstreams! Both are made new! 0.5mm. I will also include the bag the ballpoint pen came in. The back also has the model number of the replacement core, so you can replace it when the ink runs out! Thank you! Instant purchase is fine, but please purchase only after you are satisfied. Please note that returns and exchanges are not possible. Thank you for your understanding. Stored at home. No pets, no smokers! Thank you for viewing. Please consider.