100 Pcs Button Compass Bulk 20mm Mini Survival Pocket Oil Filled for Camping Hiking Boating Touring Outdoor Activities

100 pack mini compasses, 20mm diameter, lightweight and portable for pocket or backpack. Made of durable ABS plastic with liquid filled for stable and accurate readings. Instructions: separate compasses if magnetic interference occurs, place horizontally for pointer to rotate freely. Suitable for mountaineering, camping, cycling, geological exploration, and navigation.