DonM Diamond Tour. Comes with shaft and grip too. I bought one from James at Custom Golf Center. I couldn't get it working for me. He built one for himself and liked it in his shop. James, if you are reading, did you ever play with it on the course?
customgolfcenter DonM No, haven't taken it out on the course yet.... because I haven't been out on the course since then. LOL I to still like it on the 10-11ft putts I'm able to do in my shop, but haven't had a chance to try it on long putts yet.
pellmell azgreg You're blind. https://www.diamondtour.com/golf-components/club-heads/putters-chippers/inazone-armbar-putter.html
Jp47 I have built and arm lock putter with a SHM 2 putter head from Hireko with a Apollo 75° single bend shaft and a JMX Jumbomax grip. The putter is 41 inches long and I anchor it in the middle of my forearm to protect my lower back. The head weights 395g and has 3° of loft but it works just fine since I putt with an open stance of about 20° with a forward ball position. The best I have ever played. No more fear of 3 to 6 footers and my lag putts have improved. Not a sigle 3 putt in my last three games.
Toulon Has Mallet Available, too: https://www.ebay.com/itm/ARMLOCK-PUTTER-P10G-HEAD-CHOICE-OF-LENGTH-EGK-OR-KARMA-GRIP-ARM-LOCK-/153343403364 https://www.ebay.com/itm/BioMech-Golf-Accu-Lock-ACE-Putter-39-Right-Hand-Arm-Lock-Putter-W-Head-Cover/323851564571?hash=item4b670eb61b:g:mycAAOSwFQFdH4ki Acer 2105 Arm Lock Mallet Putter Graphite Head