KTELI Work for Graphite shafts ONLY. To install all you need to do is it epoxy into butt and of the club,after epoxy has dried you can cut to desired length This extension is great of light weight and dont add much static weight to the club It can be sanded to reduce for smaller shafts Colour:Black Material:PP Package Contents: 4 x golf club extension Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.