The Yakattack TracPak Stackable Storage Box can be attached to the base (sold separately) and stacked on top of each other securely. When two boxes are stacked, you can access both the top and bottom boxes easily. The TracPak does not float and is not waterproof. Each quick-access storage box features an eyelet for a security leash. The TrackPak Spare Box has four white adhesive labels to help with organization. These labels are designed to fit on the box's latch and allow you to identify the contents inside, making it easier to track what's inside the box. With interior dimensions measuring 8.375" x 5.375" x 2.375", this secure storage box has multiple uses. TracPack is an innovative storage solution that offers excellent value to both recreational and fishing kayak anglers. With ample space to store your tools and terminal tackle, you have secure, quick-access storage for your gear. The stackable storage boxes quickly and securely snap onto the base (sold separately) and on top of each other TrackPak Spare Box is not waterproof or water-tight and does not float; it includes a built-in eyelet for a security leash Includes four white ID adhesive labels for the latch of the box Dimensions: Weight: 1 lbs. Internal - 8.375" x 5.375" x 2.375" External - 9.5" x 6.5" x 3.625" Manufacturer's lifetime warranty Quantity per pack: 1 Made in the USA