These plastic, workable sized storage boxes are easy to arrange in a cargo bed and vertical-sided to avoid wasted space. They stack securely for convenient storage in your vehicle thanks to the lids fitting neatly into the base of the box above it. A set of 2 Wolf Pack Pro storage boxes. Made from black, impact-resistant plastic. Features new extra-secure latches sealing the Wolf Pack Pro. Integrated grips for easy carrying. Versatile. Use in the cargo bed, truck/boot, or on your roof rack. Suitable for exterior storage. Wolf Pack Pros form the heart of many Front Runner storage systems. The Front Runner Transit Bags hold 2-3 Wolf Pack Pros depending on Transit Bag size and Wolf Pack configuration. Front Runner Wolf Pack Drawer Systems provide a comprehensive and practical vehicle storage solutions. For a padded storage solution, line the Wolf Pack Pro with a SBOX027 or SBOX052 to protect camera gear, kitchenware and other fragile items. Use in conjunction with RRAC201 or STRA034 as well as RRAC012 for a safe and secure roof rack storage solutions. SBOX031 are not stackable with SBOX008. PLEASE NOTE:Due to varying internal air pressure, the lid of the Wolf Pack Pro may occasionally prove difficult to open due to its sealing ability. To open, apply moderate pressure to the lid with one hand directly next to the latch, checking the latch is properly closed before unlatching. To view a demonstration, please view video in the videos tab above.