Designed to meet the needs of professional bike mechanics to withstand the punishment of international travel and race use comes the Rolling Big Blue Box Tool Case from Park Tool. The BX-3 is molded from durable, impact resistant polypropylene and it uses pallets that fold out like wings offering 70 percent more surface area than its BX-2. 2 box. Keep all of your tools safe and ensure that they arrive at the venue with this box. Park made this box easy to transport with its smooth rolling integrated wheels and extendable handle. Every detail of this case ensures form, function, and longevity not only for the box but also for the contents inside. For instance, it's sealed, keeping dust and water from reaching the contents inside and features an air pressure compensation valve if the altitude changes or if you'll be traveling by airplane. The lid is assisted with gas struts for easy opening and once inside, you're greeted to custom designed pallets with plenty of loops and pockets for holding tools. Dual-sided upper and mid-level folding pallet wings allows for full access to tools while the front tool pallet stores safely inside during transport and ensures that the most common tools are easy to reach.