Klein Tools MODbox Rolling Toolbox has 10-Inch solid rubber wheels that are larger and more durable than the leading competitor. The retractable handle is easy to remove for storage in tight spaces. Bring more tools to the jobsite with side rail attachments and back stowage compartments. Rolling Toolbox is IP65 rated, 250-Pound (113.4 kg) capacity, and made with impact resistant polymers. Easily connects with other MODbox components to make a custom mobile workstation. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.