The Nexx Scholar Springbow 6-Piece Precision Compass Set features a high-grade, nickel-plated solid steel drawing toolkit. An integrated central thumbwheel micro-adjustment spindle controls leg widths with absolute accuracy. Double-knee joints break outwards smoothly to keep drafting needles vertical for perfect small circles. The comprehensive six-part setup includes an extension bar for large circle layouts. It serves as a vital toolkit for Engineering Graphics and Design (EGD) students. This premium scholastic geometry set includes a protective travel hard case and spare replacement leads.