Silver and Black Mechanical Pencils - Model: Mechanical Pencil - Colors: Silver, Black - Features: With clip These are old Mitsubishi Pencil mechanical pencils. They are the type where the pipe can be stored. When storing, you press it against something to retract it. To extend it, you click the top. Click again to advance the lead. I recently read an article that said the type that can't be retracted by clicking isn't called a double-knock. These have been stored for a long time. They haven't been used, but I have tested the clicking mechanism. It functions properly. There are some minor scratches from storage. Please check the images. Please understand the above before purchasing. Thank you for viewing. * If you would like to change the shipping method, such as to anonymous shipping, please message me before purchasing. The difference in shipping cost will be added.