Massage Gun Tool Extender

I recently bought a Toloco brand massage gun, and then discovered that third-party companies also make heating and cooling heads for massage guns. After buying one of those, I found the connecting stem to be a bit too short for the gun, so I ended up designing and printing an extender. This is designed for guns with a .76-inch tool diameter. I printed it in PLA-CF, but regular PLA should be just fine. It's designed for a tight fit, with a slight taper to the tools. Hopefully, this helps you with your massage gun as well. Thanks