The ToughBuilt TB-C1-T20-B combines a rugged 20?oz double-wall vacuum-insulated stainless steel tumbler with a secure StackTech® cup holder, keeping drinks hot or cold all day while preventing spills on the job site. Built from premium 18/8 food-grade stainless steel, it features a leak-proof screw-on lid with a removable slider for easy cleaning and controlled flow. The quick-release cup holder mounts seamlessly to a range of StackTech Storage ToolBoxes, offering hands-free convenience and portability. Dishwasher-safe and designed for durability, this tumbler and holder set is the ultimate hydration solution for tradespeople and workshop professionals.