I HAD THESE MUGS BEFORE, THO NOT LIBBEY KONA BRAND, AND I REALLY LIKED THEM…. BUT THESE ARE EVEN STRONGER AND NICE THAN THE ONES I HAVE USED.. AND ULTIMATELY BROKE OVER 20 YEARS. LOVE LOVE LOVE THESE LIBBEY KONA COFFEE MUGS.. THANK YOU ONCE AGAIN FOR QUICK DELIVERY AND GREAT PRICES FOR THE 6 MUGS, BEST EVERY MUGS FOR COFFEE !!