The Ice Twist from Art Glass is a straight cylinder bong with a twist. You may have figured that out. The twist allows that wonderful addition to the usual smoking utensils, ice! To cool that smoke on its glorious mission to your lungs where it will be welcomed heartily, or perhaps lungingly.Art Glass Bongs are good quality glass water pipes with extreme functionality featuring both timeless and creative designs. Their average glass thickness is 3.2mm which is the same as the standard Little Sista made famous by Roor. Comparable in quality to any of the more famous brands, this Straight Cylinder is a fraction of the price.