Two hundred milligrams per millilitre puts Magnum Test-R 200 at the lower end of the blends stocked here, and it arrives as ten individually sealed 1 ml ampoules rather than as a vial. Ampoules settle the question of how long an opened container has been sitting around, since each is emptied at a single use.
The product is a testosterone mixture, several esters of the same androgen carried in one oil, from a label with a compact catalogue centred on the established compounds. Roids.club lists it in the injectable steroids section.