STAEDTLER 550 55 BK School Compass with Universal Adapter and Small Extra Pencil on Blister Card - Blue/Silver : Amazon.com.be: Office Products
Staedtler Mars Comfort, Professional Drafting, Drawing Compass with Extension Arm, Draws Circles up to 19.5 Inch Diameter, Spring Bow Compass with Center Adjuster Wheel, 551 02