These plastic compact sized storage boxes are easy to arrange in a cargo bed and vertical-sided to avoid wasted space. The nesting lids design allows the Front Runner Cub Packs to stack securely to each other. Made from black, high strength plastic. More compact than the Wolf Pack – by Front Runner. Integrated grips for easy carrying. Versatile. Suitable for exterior storage. For even greater protection on your vehicle, store in a Transit Bag / Large – by Front Runner. Use in conjunction with Stratchits – by Front Runneras well as Black Tie Down Rings – by Front Runnerfor a safe and secure roof rack storage solution. Front Runner storage systems are configured around the Wolf Pack – by Front Runnerand Cub Pack – by Front Runnersizes to allow a comprehensive and practical storage solution.