Quick service , good item, thread on inside..

A useful smaller weight as a counter-balance to the Orion OAG and DSLR on my 10" SCT. Fits nicely to the ADM Vixen clamp and dovetail bar on top of the scope.

Not much to say about a counterweight except after several years these are not rusty. Can't say the same for the skywatcher white ones on my other scope.