COMPATIBLE with all types of flooring, the innovative system of hinges and angles anchor the DoorJammer firmly to carpeted, tiled and laminate floors when outside pressure is exerted on the door. Start-up business lesson:Kavuri thought his impressive employment and education history, as well as demonstrating a strong work ethic, would be enough to secure investment. Unfortunately, in selling himself, he failed to sell his business, leaving the Dragons unable to get excited about his poorly branded product. Read on for a round of the pitches and what you can learn from this instalment of Dragons’ Den… Roger Willems and Phil Stratford Kavuri's failed to express excitement in his product and explain why it would be a money spinner. Sam Coley and Steve Pearce

Meaden decided she wouldn't become just “one of a list of great names you’ve got involved in the business” and became the first to drop out of the deal. Willingham was unable to allay her fears that it would be too difficult and expensive to “become the first port of call” and also declined to invest. The DoorJammer is comprised of an ingenious configuration of angles and hinges that anchor it firmly to the floor when subjected to an outside force. The neoprene extension foot bears down on carpet, linoleum and wood flooring to create a firm barricade. But the real beauty of the DoorJammer lies in its simplicity to use. It installs in just seconds, without need for tools or special expertise. If you can turn a water faucet on and off, you can use the DoorJammer. In an emergency, the DoorJammer removes with a swift upward pull. The DoorJammer is TSA friendly for carry-on travel, and received a prestigious Double Gold at the recent British Invention of the Year Awards. Willingham also thought she had nothing to offer the pair, while Meaden didn’t think the business seemed “that important to them” because of their previous success.

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Meanwhile, Jenkins took query with the company name: “Go Gafoor Inc. – is that an American company?”. He was surprised to learn that Kavuri’s partner had chosen the name and neither had any idea that Inc. was specifically a US legal designation. “It’s slightly worrying, this is quite basic”, said the incredulous Dragon, “and you worked in three investment banks – God help us!”.

However, Jones was prepared to make an offer: half of the money for 10%, on the grounds that Jenkins would also come on board – he did. Suleyman was also keen to invest, offering all the money for 15%.

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Jenkins added: “I think this is one of the best personalised products I’ve seen”, and matched his fellow Dragons offer. Willingham also matched the offer, boasting her experience with Facebook advertising as an added bonus with her involvement.