Key Features :
i : STURDY & ACCURACY. Made of steel. Withstands bending under pressure to maintain accuracy. Metal construction for long lasting use. Exquisite mechanism provides smooth use. All metal with nickel plating.ii : EASY TO USE. Scale-arm, easy grip top control with two-sided 6-inch / 15-centimeter measuring. Metal point makes circles up to 12" in diameter.iii : IDEAL DRAFTING. Each compass includes 3-1/2" #2 HB golf pencil with secure lock allows quick adjustment as needed. Great for drawing arcs, circles, divide gauges, dividing lines, and measuring sizes, making it perfect for precise drawingsiv : PERFECT ANGLES. Perfect for precise drawings. Trace and draw the perfect angle, circumferences, graphing, and design with our easy-to-use compasses.v : MULTIPURPOSE. Excellent for use in school, office, studio, or at home. The best circle drawing tool for student, artist, mathematician, carpenter, engineers, architecture, and designervi : MULTI-PACK: Sold as a pack of 12 compasses, each with a golf pencil.