Rob Law pitched the children's ride-on suitcase Trunki on Dragons' Den.
Trunki is a lightweight children's suitcase designed so that a child can sit on it and ride along while travelling. Law developed the idea through his company Magmatic and presented it on Dragons' Den during the programme's early years.
The pitch became memorable because the dragons questioned the product's design and commercial prospects. Although the television appearance did not produce an investment deal, Trunki went on to become a widely recognised travel product and won several design awards.
Trunki is sometimes confused with Tangle Teezer because both became famous after unsuccessful or difficult Dragons' Den pitches. They are unrelated businesses: Trunki is travel luggage for children, while Tangle Teezer is a hairbrush invented by Shaun Pulfrey. Rob Law remained closely associated with Trunki's design and development.