The PEAK Riser will work with our Pedestal Base or C-Clamp and will accept vises having a 3/8″ diameter riser shaft. The Riser allows you 1-3/4″ additional height adjustment. If you use a pedestal base, leaving the riser attached to your vise and disassembling it from the base will leave you with a flat base for easier transportation.Do you need help? Do you have any questions?Ask a question and we'll respond promptly, publishing the most interesting questions and answers for others.