toward more marijuana oil. >> reporter: and it's made in this room. the plant is ground up. and, yes, they use a blender. then the oil gets extracted out of the plant using co 2 under high pressure. the result is an oil that is 30% to 70% thc. psychoactive chemical that makes you feel high. that level is two to six times higher than you'd find in a traditional joint. >> we're supplied with the cartridges. we load the marijuana oil into those. we fill 1,000 pens a day. basically we are selling it as fast as we are making them. >> reporter: selling them to retail stores like green fury in bellview washington with a variety of e-joints or pens. >> the joint, the pen, has a handy stylus on the end for business executors. they're becoming a much bigger part of our business every day.