This Duuo trailer is very convenient if you are short of storage space. The unit can be stored vertically and moved around on four castor wheels – see attached photos. The internal box size is approximately. 51″ (L) x 44″ (W) x 20 (H) or 130cm (L) x 112cm (W) x 50cm (H). It is well built, has been used but is in generally good condition and has a spare set of rear lamp boxes. I no longer have a tow bar so it will need to be collected from BS40.