I never use JY labels, as I always make my own. I have my name and mobile number (no home address) &JY emergency number at the top and then in date order every flight from to and number, every hotel, address and tel number, it sounds like a big label but not if you use a small but reasonable size font. I print off a big one for inside the case and then smaller ones as labels which I laminate and attach to cases and bags by using cable ties. I may sound a bit OTT but if you have ever stood at the carousel when everyone else has got their luggage and there is no sign of yours its not much fun. Quite simply it shows where the case should be at anytime in your travels and how to contact where it should be