A firm rubberized material highlights a new line of "soft touch" collet knobs that features an eye-catching design. The knobs work with most round shaft switches and potentiometers and come in 15-mm and 21-mm diameters that accept shaft diameters of 4 mm to 0.25 in. (6.35 mm). The two-shot injected knobs use a metal collet with "fingers" that tighten evenly around the shaft to prevent slippage and protect the shafts. Caps are available in two colors, with or without lines or dot markings for indicator reference. Accessories include pointers, nut covers, and figure dials with number settings. Price is approximately $1.50 each in volume with a two-week lead time.