The unique Gibraltar Flatter Bags are expandable in both diameter and depth. They are easy to load and can accommodate standard or oversize drums. When not in use, the bags unzip to collapse completely flat for out-of-the-way storage. The zippers are large and durable and the bags include comfortable padded handles and industrial-grade Velcro straps. Size labels help identify each drum and an ID tag holder is included for easy recognition. · 20-inch diameter, 14/16-inch depth bass drum · Expandable depth and diameter · Collapse the bag to fold completely flat in situations where storage space is limited · Large durable zippers and industrial grade Velcro straps · Comfortable handles, name tag ID holder, and size identification label