This ad features a chameleon fumed, tornado fluted glass slide bowl for your bong, water pipe that is over-all about 2 1/2" long and has a 14mm male joint size with 2 grip features. The actual bowl part of the slide is a hemisphere (1/2 a sphere) shape and 5/8" in diameter at the top surface and about 1/2" depth. The actual fluted section is about 2" long and the outside diameter across the flutes is about 1 1/4".
Like all chameleon silver fumed pipes the exact hue and glow from the pipe depends upon what background color you hold it against and the light source. When viewed against a black background (hold it against your black shirt to see an awesomely cool purple iridescent glow) it glows a purple iridescent color, against a white background it has a blue-yellow iridescent glow - a very cool and unique property of this unit.
This item is a hand made glass art item (vs. exact machine made duplicate) and as such will vary slightly in exact size, color and features (but will always fit a 14mm joint).