The Rapidloo standard portable restroom from T blustar is composed of a modular interlocking system that can be assembled and unassembled in less than two minutes using no tools or rivets and stored or transported as stacked individual parts, according to the maker. The lightweight components can be disassembled and stacked on a trailer for easy maneuverability. If parts of are damaged, unlock the broken part and replace it with a new part in less than a minute. Units are designed to fit three unassembled units inside of one assembled unit, allowing PROs to efficiently transport four times the units in one trip. During downtime, units can be disassembled and stored neatly and organized, taking up a quarter of the space. 404-719-0715; www.tblustar.com.