The Riser is for those tyers that would like to adjust the height of their vise using either a pedestal base or the PEAK clamp. (or any other standard 3/8" diameter shaft)
The all brass body allows the adjustment you need when the table or chair height does not match your needs.
Allows 1-3/4" additional height adjustment
A brass tipped set screw, using the same 1/8" allen wrench used on the PEAK pedestal base and Clamp, is used to securely clamp any standard 3/8" riser while the lower portion can be clamped in your standard 3/8" hole in a pedestal base.
This is a great accessory when you do not get to choose the table height at your hotel or on river tying site.