The knob rim, coated with elastomer, is shaped with four large-size notches to provide a solid grip during clicking operations and to make such operations more comfortable. Seat for fitting ball and spring for click positioning. Ball and spring available.

Manufacturer of custom & build-to-order plastic control/instrument, clamping, fastening knobs & levers in a variety of styles, sizes, & shapes. Parts available with standard (inch) or metric studs & inserts. Manufacturing capabilities include single & multi-shot injection molding & thermoset compression molding.