Full metal construction with aluminum jaws and hardened steel guide plates for straight cuts every timeFits tube sizes from 19 mm to 39 mm (3/4'' to 1-1/2'') everything from handlebars, many seatposts, and 1-1/2'' steerersLaser etched sizing scale provides quick reference of jaw positionEasily set slot width for standard or carbon blades by moving spacer plate positionMaterial CompositionStainless Steel & Aluminium