Check the listing for details. Genuine Koss Headphone Storage Hard Clam Shell Cases and Drawstring Koss Pouches. Color: Black, Condition: Open box. Listed at 5.00 USD. These are genuine Koss Porta Pro headphones hard clam shell round storage cases and drawstring storage pouches for sale (the Koss hard shells and Koss pouches are sold separately and not as a set). These are official and genuine NEW Koss Porta Pro Clam Shell Cases & Pouches and are not knockoffs, used, etc. These come with the Koss Porta Pros that I rework into the 2E1 headphones for the single sided deaf community (sold here ebay.com/itm/283272193147) and then sell these new out of the box pouches and cases on here. In addition to being used as storage for Koss PortaPro headphones these can be used for lots of other storage uses like being used as dice pouches and so on. Thank you for supporting a unilaterally deaf maker like myself who serving the single-sided deaf community!Ships from NYC with Free USA Shipping.