With this set, you have all you need to carry up to fourteen 2500 ft. spools or a combination of 2500 ft. and 500 ft. spools on the jobsite. It holds thousands of feet of conduit and has room for many additional materials and tools needed throughout the workday. Additionally, this set includes five spools of 2500 ft. THHN wire and four spools of 500 ft. THHN wire.