Metal Compass Geometry Set:This 8-piece multi-functional set includes a ruler, two set squares, a protractor, a metal compass, an eraser, and pencil leads, covering all geometry tasks without the need to purchase individual stationery items. School Circular Geometry Tool Set:The sturdy metal compass features an adjustable swivel lock to securely hold the radius and prevent shifting. Combined with a sharp pointer, it allows for drawing smooth, even circles. The ergonomic dark blue handle reduces hand fatigue during extended geometry practice. Scratch-Resistant Student Measurement Tool Set: The transparent plastic ruler and protractor feature deeply etched metric and angle scales that are scratch-resistant and fade-resistant. The transparent material allows for perfect alignment of measurements with notebook paper, ensuring accurate calculations. Portable Geometry Stationery Set:The double-hinged hard plastic case features custom slots to store each tool, ensuring each accessory is securely held. Its slim design easily fits into backpacks and pencil cases, making it convenient for school, tutoring, and exams. High-quality compass: With this high-quality compass, you'll never encounter the problem of drawing circles that aren't perfectly round. The adjusting screw in the center of the compass allows for precise setting and fixing of the desired circle size.