This is a stamp holder that replaces the one-touch type. 10.5-12mm (oval) 10-12mm (round) I am selling this because I purchased the wrong size. It is unused, but I did open the package and tried to insert a stamp. (It's unused because the size didn't fit.) - Brand: Hanzou - Type: Stamp - Sizes: 10.5mm, 10.0mm, 12.2mm, 12.0mm Thank you for looking.