This is an adapter that allows you to attach M42 lenses to EF-M mount cameras. I used it about three times on a Canon EOS Kiss M, but I am selling it because I purchased a new mount adapter. It's in almost perfect condition with very little signs of use. It will be shipped in its box via Yu-Packet Plus. Please check and assess the condition of the product in the images. Please purchase if you understand the condition. Please understand that there may be minor scratches or stains that are not visible in the photos, or that I may have overlooked. It will be shipped in simple packaging on days other than Sundays and holidays. Please refrain from purchasing if you are looking for perfection or are very sensitive, as it is a home-stored item. No claims and no returns are accepted.