Designed specifically for use with BlingLights 3" Diameter Flexible Cold Air Intake Pipe available at the link below. This listing is for the rubber collar ONLY.
One side has an inside diameter of 3-1/4" to slide over the flex tube. The other side has an inside diameter of 3". The larger side that connects to the flex tube has ribbing to lock in place without the need of an o-ring. Total length of the collar is 2-1/2".