The Compass that is part of your gear. Suunto attachable compasses form a natural part of outdoor gear, freeing up hands and easing the mind. Fastens to strap, sleeve or map edge. Operable in low light with luminescent markings. Limited Lifetime Warranty. Liquid filled jewel bearing compass. Balanced for northern hemisphere. Cardinal directions in luminous prints on card. Direction on rotating bezel in 10 degrees increments. Clips to watch strap, sleeve, strap of backpack, side of map etc.. A fun, supercompact aid for underwater navigation. Suunto limited lifetime warranty