This ad features a stretched DARK STRIPE CUBE glass slide bowl with red/black frit inside, a dark colored accent stripe and 2 grip features for your hookah water pipe that is over-all about 3" long and has an 18.8mm male joint size. The actual bowl part of the slide is a rounded cone shape and 5/8" in diameter at the top surface and about 5/8" depth. The length of the square part of the slide is about 1 3/4" and the actual size of the square is about 1" x 1".
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 18.8mm joint).