High Quality Plastic Material: The Compass Is Made Of Quality Plastic Hard Shell, Durability And Practicality, The Pointer Swings Freely And Points Accurately In The Oil, The Subtle Direction Changes, And The Guide Can React Sensitively, So You Won'T Lose Direction With This Tool Portable Size And Easy To Carry: Outside Diameter: 20Mm, Height: 6.5Mm. Compact Size Easy For Smaller Hands To Handle, The Right Size And Light Weight Help You Carry It Easily And Reduce The Size And Weight Of Your Luggage, This Is An Essential Outdoor Gear For Everyone Special Circular Design: The Classic Circular Chassis Allows You To Hold It Easily And The Green Direction Label Will Not Make You Feel Visually Tired, The Clear Scale Is Convenient For You To Read, The Precise Scale Makes The Direction More Precise Wide Application: It Can Be Applied For Outdoor Mountaineering, Orienteering, Camping, Outdoor Riding, Geological Exploration, Navigation And So On, If You Are Looking For A Precise Compass, Then This Is What You Need Package Include 50 Pieces Compasses: You Will Receive 50 Pieces Compasses In One Purchase, The Number Of Compasses Is Enough To Share With Team Members Or Friends, You Can Also Have Multiple Spare Compasses To Meet Your Needs