These translucent harmonicas have their own plastic carrying case. Whether you are an aspiring musician who wants to play music or someone who just wants to make some noise, these harmonicas are sure to please. This Semi Transparent Harmonica 12 Per Display is a great way to experience the joy of music! The 4 inch harmonicas are made of plastic and metal and come with a plastic case for easy transport. Perfect for ages 3 and up, these harmonicas have a big sound and come in an assortment of colors. Enjoy the fun of making music with this fantastic display of 12 harmonicas!