hi there every one i made one of these for a fellow member here well i really made two of them and traded him for one for some parts. it's a 90mm side wheel that is made to fit bsa swf series scopes.as you know if you own one you can't buy large side wheel for the swf series took the the measurements off the swf 624x44 model. and made a couple up . i can't give it away though. i'll take a trade for this one 3 full sealed tins of jsb exact 18.1 gr. 500 ct. or 45.00 shipped . if anyone is interested let me know.