Rob Law pitched the ride-on children’s suitcase Trunki on the UK version of Dragon's Den.
Trunki is a small wheeled suitcase designed so children can sit on it and ride while travelling. Rob Law developed the idea after noticing the practical problems families faced in airports and other travel settings. The product combines luggage storage with a ride-on form and is aimed at young children.
Law’s appearance became one of the programme’s most discussed pitches because the dragons did not invest. The product nevertheless went on to become a commercially successful travel brand. That outcome illustrates a recurring Dragon's Den lesson: a televised rejection does not necessarily predict a product’s later performance.
Trunki is sometimes confused with other children’s products seen on business-pitch programmes, especially wheeled toys or travel accessories. Its defining feature is that it is a child-sized ride-on suitcase. Rob Law remained closely associated with the brand and with product design for family travel.