ZEBRA ballpoint pen refills, 0.7mm black ink, set of 8. These have been stored at home for a long time. One refill has been opened and tested (see image 5). The opened refill is also included. *Box not included. - Brand: ZEBRA - Model: BR-6A-K-BK - Ball diameter: 0.7mm - Quantity: 8 refills Thank you for looking.