Apex Pool Cue Extension - 5/16X14 Joint
The Apex pool cue extension is for a 5/16X14 Joint. The Apex 6" extension fits between your shaft and butt to give you the extra length you need on some shots. The Extension weighs ~2oz. and is designed to be used on every shot.
I actually exchanged this product for the correct joint size 5/16 x 18. FCI personnel were very helpful with the exchange. Item function as intended. Now , a perfect fit!