The YakAttack TracPak Combo Kit enables you to mount two boxes onto a single point on a MightyMount or GearTrac, freeing up track space for other accessories. The TracPak has a Quick Release Base compatible with all YakAttack MightyMounts, GearTrac, and most other factory-installed kayak tracks. If you prefer a surface mount for the Quick Release Base, stainless steel screws are included for attachment to the BlackPak Pro, the deck of your kayak, or other flat surfaces. The TracPak does not float and is not waterproof or water-tight. Each storage box features an eyelet for a leash for added security. The stackable storage boxes snap quickly and securely onto the base and each other. When you stack two boxes, you can access not only the top box but also the bottom box. The TracPak is created explicitly for use in tough marine environments and is made of high-quality marine-grade polymers. The TracPack is a secure, quick-access storage box that measures 8.375' x 5.375' x 2.375' on the inside. It's a versatile storage option that can be used for storing anything from tools to terminal tackle. The TracPack Combo Kit is perfect for recreational and fishing kayak anglers and provides a unique and helpful storage solution. Part #: SSO-1002 Quick Release Base included and compatible with all YakAttack MightyMounts, GearTrac, and most other factory-installed kayak tracks Includes two stackable storage boxes with interior dimensions of 8.375' x 5.375' x 2.375' Includes track mount, surface mount hardware, and adhesive labels for each box Manufacturer's lifetime guarantee Made in the USA