Designed for Clarinet. Package Contents : Crossrock Clarinet Fiberglass Case x1; Backpack Straps. About Us Cross rock Case has been making instrument cases for 20 years with innovative products designed to protect your instrument. We offer a wide range of products with a variety of available sizes, materials and protection levels for all types of instruments. The “Cross” in Cross rock comes from where music reaches deep into our hearts and crosses into love. It’s where music touches our souls. “Cross” reflects Cross rock's strong emotional commitment to ensure their product designs protect the musicians’ instruments so that they can always play music that moves us. Cross rock Case for your next adventure, the brand you can trust to protect your instrument for life.