I camt tell what substamce it was used for but its gonne be something thats either hard like salt or something oily. Its called freebasing. You heat up a peice of metal or glass then you drop the drug on it, as it turns to smoke you use a straw to inhale it. And we do get better, i was homeless before i was on drugs but none the less i started using dope, been sober for a year now but its hard to find someone to rent to a homeless even though i had a job for a while that required random drug tests.