NIKON FM Series, FE Series, and FA Series Eyepiece Condition: There are cracks and peeling in various places on the rubber parts. The glass surfaces show some fine dust, but are relatively clean. The screw diameter is approximately 19mm as measured with a ruler. This is a discontinued product, making it a rare item. The condition is fairly good, so how about taking this opportunity? Shipping costs will be covered by us, and the item will be shipped via Yu-Pack Mercari "Yu-Packet Plus Mini". Please understand that recycled materials will be used for packaging. Please check the condition and size carefully in the photos before purchasing.