Quantity: 11 pieces of drawing templates in different shapes, with 1 polyethylene zipper envelope, easy to store and convenient to carry, meeting your various daily needs Material: Made of high-quality plastic, durable and lightweight; various shapes allow you to draw different patterns, serving as a convenient drawing aid Shapes: 1 curve template, 1 network technology template, 1 geometric drawing template, 1 mechanical template, 1 nut template, 1 architecture template, 1 mathematics learning template, 1 circular template, 1 multifunctional drawing template, 1 ellipse template, 1 orthodrome template Units of Measurement: Our measuring template rulers are in metric units, measured in centimeters, ranging from 17.8 to 25 cm (7 to 9.84 inches) in length and 9.4 to 14.7 cm (3.7 to 5.8 inches) in width Applications: Geometric rulers are ideal for art design, fractional measurement, building templates, architecture, web technology, and drawing tasks in schools, offices, and homes; a helpful tool for students and children