One of the all time great microphones, this is a classic bi-directional ribbon microphone. It takes EQ better than most mics, and it sounds authoritative on sources from piano to overheads and guitar amps.
It is not too fussy about SPLs, but if it distorts on a source, angle it more and move it away further (Or, if you are a guitarist, consider turning down your amp).
In their original design, they are made to be hung from the ceiling - hence the standard adapter that has the three eyelets. The brass adapter that is meant for standard microphone stands is included. If you are unsure about anything when using this microphone, a fantastic overview is here.
Be aware that these are heavy, so booms with a counterweight might be called for.