Pass Through Beer Shank - 4 in for Jockey Box4" pass through beer shank is perfect for making your own jockey box. Drill a 1" hole through the cooler, insert the shank, and use the two attached nuts to tighten up on the cooler. Includes: 4" shank with 3 8" bore 2 nuts Also needed but not included two tailpieces, two beer shank nuts, and two beer shank washers. California Proposition 65 Proposition 65 Warning: This product can expose you to chemicals that are known to the State of California to