New Friends Glass Frog is a Tumbler / Whiskey glass belonging to Kosta Boda's hugely popular series "New Friends". The series is designed by Ernst Billgren who wants to pay tribute to Swedish wildlife and has become a bit of a collector's item for the glass fanatic. The series includes 6 different glasses and a bowl that are all adorned with these wonderful handmade glass animals made by Kosta Boda's master craftsmen. The glasses do not withstand machine washing but must be washed carefully by hand.