The Alu-Cab RT-4S in black is a heavy-duty, 4-sleeper hardshell rooftop tent featuring a flipout aluminium bed design. It provides a massive 4.5m² internal sleeping area (2,235mm x 2,050mm), dual-color LED lights, built-in USB/Type-C and 12V sockets, a marine-grade skylight, and weighs approximately 127kg with the ladder and mattress