Proto Pipe Classic Highbrid - All In One Brass PipeThe Proto Pipe Classic Highbrid All In One Brass Pipe is a twist of both the Rocket and the Classic. The new stash pods end of the tube is 1 8 several times thicker, and much more durable. The walls of the tube are thicker and more difficult to crush, the collar is thicker, sturdier, and the collar is knurled, which is a labor intensive process which results in improved function and aesthetic. As well as different variations for that lefty or righty!