Great product! I'm so glad I found this before Christmas - it was the perfect gift for all the boys! Solves major travel headaches and I will use it on every trip now. Easy to pack, easy to use and the solid metal construction makes it a winner for me! Two sets are included so I can easily keep one set in my closet and the other in my luggage so I never end up with a short collar. I've seen reviews discussing the problem of carrying them through airport security - this hasn't been a problem for me yet, but I don't really care about just taking them off before going through the detectors and throwing them in mine Pocket. - on the pocket. I recommend this as a great gift idea for any man who needs to wear a suit or shirt and tie - it's so much easier, especially for travellers!