Just recreating another double crushed end tube would not be my style, so I made the insertion tip longer for better adhesion, back weighting, and counter balancing. They also have a chrome style finish so if you need to use it for a belly putter extension you can leave it exposed.

This is the difference between a standard steel shaft extension and Billy Bob Steel Shaft Extension: Example: a 1” inch regular extension on a club will increase the swing weight from 6 to 7 swing weight points. Billy Bob Steel Extensions at 1”inch will increase the swing weight by only 3 points. This is due to the insertion going farther into the shaft to counter balance the swing weight, which makes the Swing Weight Adjustment more Flexible and much Better Epoxy Bond.