Contains 15 Flight Travel Ukuleles and a Flight NUC310 Concert Ukulele for the teacher! They are made almost entirely from ABS plastic, but with a wooden top. The arched back and plastic body allows for great sound projection, but also fantastic durability. There is no binding between the body and neck, which is also plastic, so will not bend, and they stay in tune! These ukuleles are perfect for beginners and for schools that need a hard-wearing portable uke.. Great Value!