Summagraphics digitizer pen and cursor set for graphics tablets and CAD systems. Includes 16-button cursor (CSR4 MM 2.5, P/N 01-0390-001) with crosshair loupe and numeric/hex keypad (0-9, A-F), plus digitizer stylus (P/N 01-0339-001E) with blue button. Both connect via RJ-style connectors. New old stock in original Summagraphics box with bubble wrap packaging.