Reviewed by 2 customers
One of those items you need to keep with your camera gear.
The photo makes the adapters look like they might be stamped or machine pressed metal. These are very good quality machine threaded adapters. Also with a slot for a flat blade screwdriver to tighten into your ballhead or other device. I used these to convert a 1/4x20 monopod to a ballhead with female 3/8 thread. Works as you would expect.