B&K Tank Gauge Company. Made of kiln dried seasoned hardwood. 13/16″ square profile. All edges rounded slightly. Polypropylene button added to foot of pole for protection. Durable 2.5 mil coatings to protect against chemicals. Increments are embossed in 1/8 inch. Any style scale available in black, red, or silver ink. Black stick with silver letters is an extra charge.