Okay my question is simple I have some ox and i was wandering what milligram they are i can give a description they are round about the size of the hole on a casset tape on the back there is a line nothing else and on the front it says 551 i believe 5 something anyway no other markings i've never had any before and i'm curious what the effects are plus how much money i can make from them please respond, Sincerly Jezter