I love my Stax parts and the smoking experience they provide, however, once you get two+ percs on a base and the only mouthpiece you have is the helix... it can get pretty tall and tougher to use alone. I ordered this because the turbine base + circle perc + glycerin coil + helix mouthpiece is very tall and this definitely made it more manageable. I don't feel like I need to set my stax on the ground to use it now. Very sturdy feel and good thickness on the tubing. It’s great to use the turbine base + angled mouthpiece as a smaller bubbler, too. Grav Labs nailed it again!