PRECISION DRAWING CAPABILITY - Craft exact geometric shapes with ease; double-jointed metal legs ensure superior stability and accuracy for up to 12-inch diameter circles. WIDE DIAMETER RANGE - Versatile and adaptable, this compass can draw large circles up to 12 inches in diameter, perfect for various artistic and technical applications. DURABLE METAL CONSTRUCTION - Built to last with high-quality metal, this compass withstands rigorous use, ideal for students, architects, and professionals alike. EASY GRIP DESIGN - The knurled compass head provides a comfortable and secure grip, allowing for steady and precise control during use. INCLUDES REPLACEMENT PARTS - Comes complete with extra leads, bolts, and nuts, ensuring long-term functionality and value, all contained in a durable case.