This ad features a SET OF 4 - 3" SPRING type Self Cleaning One Hitter aluminum anodized smoking pipes as shown. The set includes one each of red, silver, blue and green spring style one hitter metal pipes. Each pipe is about 3 1/4" long with an outside diameter of about 5/16" with a smooth anodized finish and a spring section as shown. These pipes are the self cleaning type and can eject the used tobacco from the bowl end of the pipe by pressing inward on the opposite end of the pipe by the spring. The tobacco bowl area is 1/4" in diameter and about 1/4" deep. This pipe is made from durable anodized aluminum and can be fully dissembled for easy cleaning.