A durable, versatile, and easy-to-use vise designed for everyday workshop use. Featuring a cam-operated micro-adjustment clamping system for easy insertion and release, it opens to fit nearly all tubes from 23 to 76 mm (7/8'' to 3''), including aero tubes. With infinite adjustability, there is no need to worry about accidentally crushing or damaging delicate carbon fiber tubes. The narrow clamping jaws fit into tight spaces or short seatposts. The 100-25D model is built to last, with a precision-machined, powder-coated die-cast aluminum main body and durable, replaceable jaws.