325mm Hypotenuse Metric Professional Geometry Set Square Drawing Drafting Triangle with Grip 325mm Hypotenuse Metric Professional Geometry Set Square Drawing Drafting Triangle with Grip Dimensions: 32.5cm (hypotenuse) x 23cm x 23cm, 45 degrees. Thickness: 2mm. Made from clear transparent, acrylic plastic. The rate of transparency allows to see the drawing medium below template for easy positioning. Contains precise mm graduated scale across the set square, semicircular protractor. No grip handle. High quality, durable set square for professional applications: technical drawing, art, craft, engineering, architecture. Perfect for school geometry classes.