What end pin is this?

Thanks for the kind words about the video! Yes, it is a home made endpin made for me by a former student in NY named Piet Koster. It is a bent Goetz endpin with a brass housing that fits around the endpin housing on the bass. It has several screws to distribute the force around the housing. It is kind of like the crow's nest on an old sailing ship that has a mast passing through it. The endpin passes through the brass fitting into the normal hole but is held in place by the screws on the brass fitting.

 

I had the KC Strings Peg Leg put on my Kay bass this summer. It is great. I had the hole redrilled to have a different angle so the endpin is more straight to the ground at the angle I like to hold the bass. The Peg Leg is very solid and stable. So yes, I am a fan of it!
Here is a link to the KC Strings web page for the Peg Leg.
http://www.kcstrings.com/bass-machines.html