Hi. There are two patterns with the leather loop/ring round them. It is positioned further forward on the lens caps specifically intended for No32 scopes, so that the loop does not foul the Range & Deflection drums. If you try to fit the type intended for the No42 & No53 scopes to a No32 the loop, being further back, fouls the drums. I gather from what Peter L & others have mentioned, snipers just cut off the loop from the No42/53 type, & then they would fit onto a No32.