I use the lens cap for an old Pentax SMC-M lens. It fits perfectly into the filter thread and seated. By "intervention" can it easily inserting / removing also with mounted lens hood. The lateral bands, which is not seen in the photos (!) Is secured with a loop through a small hole and can be removed without being destroyed. The delivery also was quick and easy, since the program fits into the mailbox. All in all a very good price / performance ratio!
