compass (all-metal brass construction, pressure lever mechanism with automatic locking of the spindle, micro-adjustment through spindle centre-wheel, 2 knee joints, lead diameter is 4 mm, matte satin nickel-plated, includes box for leads, comes in transparent case); some versions come with extension bar (brass, matte nickel-plated, plastic, black); a universal adaptor for commercially available technical pens, pencils, ballpoint pens, fine liners, etc. (brass, matte nickel-plated, plastic, black)