This is a headphone cover. Are you worried about your headphones falling apart? It prevents the leather from deteriorating and shedding debris as you use it! It also keeps your hair clean and free of debris! It fits any model as long as the size is right. Like new again!! It can be used even if it's not a Marshall, as long as the size is right. Compatible products: Marshall MAJOR III etc. ■Size: 30 x 8 cm There may be slight variations depending on the product.