Rear seat mount - 3/4"” spacer
 
Specifically designed to locate into the rear seat mounting clamp body, to make holding the spacer in place when mounting easier, without taking away from the integrity of the seat mount hole.
 
Has 3/8” hole in all spacers so they can be used with either the 5/16” or 3/8” bodies.
 
Anodized black
 
Sold individually
 
Last picture is to show how the spacers and bodies are designed to fit together, so you can stack them to get the desired length.