A basic tool pack to cover most rack needs, spanning from Thule to Whispbar to Yakima... this set should have you covered in most cases. 

The following tools are included:

• 4mm Hex/Allen Key
• 5mm Hex/Allen Key
• 4mm Handled Hex/Allen Key
• 13/19mm Open-Ended Wrench
• 13/17/19mm Hitch Wrench

*Note to buyer - be aware that the sizes in this pack are picked as most bolts/screws/nuts fall under these measurements when it comes portions that are meant to be adjusted on the customer-end(e.g. replacement parts, general rack building, etc...); so, be sure to check the bolts you need tools for to ensure the sizes listed will fit your needs.