Dutch company Campanero has presented a camping trailer whose living module attaches to the base with a long zipper and can be replaced without tools. The system comprises three versions: Pah-Pah weighing 320 kg for two people, Eck-Oh weighing 370 kg for two to four people, and Char-Lee weighing 375 kg for up to six people. All three use the same base; the weight difference between the lightest and the most spacious is 55 kg. The trailer's permissible weight is 750 kg, expandable to 1300 kg, with a 1507-litre luggage compartment and interior height from 1.85 to 2.4 m. The design is also intended for electric vehicles.