Ritchie X-11-Y compact portable compass. Easy to read, 2 Direct Reading dial, Hardened steel pivot and sapphire jewel movement, Built-in roller diaphragm for extended temperature operating range, Choice of international safety yellow or distinctive Euro Green case, Silicon impact resistant case with neck lanyard, compact size for easy handling and storage, QuickSight V-Notch and Lubber Line for easy heading alignment, Non-electric chem sticks provide 18 hrs. of night lighting.