It sounds like our EWOL tubes. They are usually 34 French oral tubes, although our docs have putten them in nasally before... OUCH! It comes with a bite block, but it only takes one person to do the system. We only use them if it's a big overdose. After the tube is in we secure much like we secure ETT's. You attach the tube to a two-bag system. You hang the "in" bag on an IV pole and lay the "out" bag in the floor. From there you just clamp and unclamp until clear.