This ad is for ONE (1) 14mm BLUE TAIL water pipe slide bowl with a horn and ball. The horn is clear glass with a blue ribbon twisted inside and the ball is clear glass with a blue mushroom shape inside. Over-all this slide is about 2 1/4" long and has a 14mm male joint size. The actual bowl part of the slide is a cone shape that is 7/8" diameter at the top surface x 1" deep with a single open hole at the bottom. The horn is about 1 1/2" long, and 3/8" in diameter at the bowl tapering to about 1/8" at the end. The ball shape is about 3/8" in diameter.