---The details of each compass - shell compass: 0.1*0.1 inch (26mm*31mm) with a diameter of 0.08 inch (20mm). Hard plastic protective shell, filled with compass fluid, used for accurate reading, make the compass easier to work your hiking and camping directions in the right direction. ---Ideal paracord bracelet accessories. Great for designing Paracord Bracelets, Keychains and Survival Kits.Large surface dimensions, clear writing, even in the dark it is easy to distinguish the letters. ---All compass checked for accuracy before shipment. This is an important task. It gives you more confidence, security and reliability. You can use it with peace of mind. It is a gadget that can play a practical role. ---The compass depends on many factors. Please pay attention to these factors in the process of checking whether it is accurate: Avoid iron and surface; Avoid getting too close to the cell phone; Compass and compass will also affect each other, please they are 5cm apart at the time of inspection. ---Security is a particularly important issue, especially in nature, which is linked to your life. We have checked the compass and you can check it again to avoid the cause of the impact.