Check the listing for details. Staedtler 2-Piece Advanced Student Geometrical Compass, Blue, Silver (Peg G-9). Condition: New with tags. Listed at 12.99 USD. Staedtler 2-Piece Advanced Student Geometrical Compass, Blue, Silver All-metal constructionCenter wheel for quick settingHinged legsLeg extensions are plasticEquipped with a high-quality, universal metal adapter for easy circle-drawingProduct descriptionItem Package Quantity:1Advanced student compass includes center wheel that adjusts quickly and easily. Design features resilient sand-blasted and nickel-plated metal parts, nonslip grooved grip and hinged lead and needle legs. Leg extensions are plastic. Compass is equipped with a high-quality metal universal metal adapter for easy circle-drawing with all writing instruments. Maximum circle draw is 10-1/4" (26cm). Compass includes spare lead tube with extra 2mm lead.