This arm lock grip is made by a company called arm lock grips 😂 (this honestly confused me for a while I’m not going to lie) .They actually have a patented technology for their arm lock grips which I also didn’t know until recently and I’ve been searching for arm lock grips for the best part of 8 years .It’s actually a conversion grip so when you want to turn a standard putter into an armlock, there are a few things you need to tweak in order to get it to work properly .The loft is one of them