This is our 316 stainless steel Bimini Top Hinged jaw slide fitting for 7/8” (22mm) pipe
These are used in a variety of ways.
A couple of the most common is to add a Bimini top to boat rails or to add support arms to an existing top.
Once the fitting is secured to the rail the distance between the posts will be about ¼” wide, the industry standard.
Hardware and instruction / installation manual not included.