KIT PARK BX-3 ROLLING BIG BLUE BOX CASE ONLYBuilt to withstand the punishment of travel and constant use and molded from impact resistant polypropylene, the BX 3 features pallets with 70% more surface area than the BX 2. 2 Custom designed tool holding pallets with loops and pockets Front tool pallet that stores safely inside during transport Dual sided upper and mid level folding pallet wings Gas assisted lid struts for easy opening Air pressure compensation valve Dust and water resistant Heavy