The Gear Premium 15-inch Colour Changing Skull Tube pairs a striking look with a simple, effective design. The straight tube shape gives a direct, full pull, and the glass has a colour-changing effect that deepens with use and cleaning, so the look shifts over time, set off by a skull motif. A 3-pinch ice catcher lets you add cubes for a cooler draw. It runs a 14mm female joint, the common size, in thick borosilicate glass. At 15 inches it's a tall, stable piece with a bit of edge to it. A good pick if you want a straight tube that stands out on the shelf as well as it performs.