The hole that is created by the ice pinch, and the skinny size makes the airflow not that good.
I love this thing. I only smoke greens, so this bowl is perfect. I have to refill it every other hit, but that's kinda the point. :) Quality is 10/10 in all regards.
its wonderful. only issue is that it is very very deep. more so than you may think from the pictures. Holds approximately .35 grams dry herb with about an eighth of an inch left at the top.
Perfect size fir those nice one hitter packs, the slide is pretty deep and can fit a good amount of herb.
Sturdy slide works great for one person use. Conserves your stash, as well. The bowl is a little deep, but who says you have to pack it fully to the rim anyway?