A five-ampoule box rather than the usual ten: Magnum Pharmaceuticals supplies trenbolone enanthate as five sealed 1 ml ampoules at 200 mg/ml, a smaller quantity than a full 10 ml vial of the same strength.
The enanthate ester places this among the slow-release trenbolones, with the hormone separating from its chain over a span of days rather than hours and injections spaced accordingly. Magnum keeps the ester letter in the product name across its range, so Tren-E is immediately distinguishable from the acetate entries in the same catalogue.