This lightweight and compact pocket compass from coghlan s is liquid filled in order to reduce excessive swing and wobble to improve readability and reduce wear it has adjustable capsule for direction setting and a jewelled needle with luminous pointer for easy reading it is also housed in a neat impact resistant plastic case that features a triangle jump ring so that you can attach it to your keyring or add a lanyard for wearing around your neck or add a carabiner to attach to your rucksack