This compass is a must have for every adventurer who likes two free hands. It has an integrated scale in mm as well as inches. Type Size: 48(L)*42(W)*13(H) mm; Length of band: 28.8cm; Width of band: 2cm Dial Display: Pointer Use: Pointing Guide Case Material: Acrylic How to use: Wrist compass Needle Stability: Excellent; Needle setting speed: Fast A globally applicable pointer is installed in this compass, so it can be used in all of the world. With Luminous Display and Aiming Observation Window Waterproof (60 meters underwater) and Shockproof Comfortable to wear Pointer stable Never magnetized