bayite Hard Shell Liquid Filled Button Compass Set for Survival Watch Band Paracord Bracelet Pack of 10 HARD SHELL DESIGN: Much more durable than the soft rubber one which can be broken due to rubber aging Ideal for making paracord bracelets. When you make a bracelet, leave a loose place for the the compass(see gallery picture instruction). Don't put it on thick bracelet directly The liquid filled in is a good tinder in emergency. Crack the cover and start a fire with a ferro rod(fire steel) easily Shell Size: 0.94inch x 0.94inch(24mm x 24mm). Loop size on back: 3mm x 21mm The NSEW letters are bright and easily readable even in dim light