How long does the effect of marijuana last up to

             Generally, Marijuana high's last up to 2-3 hours. It does depend on the age level though. if your hight from smoking Marijuana, then that can last about 2 hours. If you ingest it, it cal last about 5-6 hours, which is much longer. 

-Anna

Iwould you figure it out but you don't have a picture or in your question as to what the physical property you're looking for is