Each one of the 52 victims of the July 7 bombings will be commemorated in a memorial which is being unveiled on the fourth anniversary of the terrorist attacks. The £1 million Hyde Park monument, to be unveiled by the Prince of Wales and Tessa Jowell, consists of 52 stainless steel columns, or stelae, which stand 3.5m tall. Each one is unique and they have been grouped together in four clusters reflecting the separate locations of the bombings - Tavistock Square, Edgware Road, King's Cross and Aldgate. A stainless steel plaque naming all those who died has also been erected at the memorial site between the park's Lover's Walk and Park Lane. Saba Mozakka, 28, one of six relatives on the memorial's project board which helped create the monument, said: "We think it is truly incredible and reflects the importance of the people commemorated." The families of those killed in the bombings will meet the Prince and the Duchess of Cornwall and Ms Jowell and London mayor Boris Johnson before the memorial service begins. Charles and Ms Jowell will both address the gathered audience before Sir Trevor MacDonald, who is hosting the ceremony, reads the names of the 52 victims and a minute's silence is observed. Mr Johnson said: "This memorial echoes the steely determination shown by Londoners in the days following the bombings. "We have done much to make London safer, but today reminds us that London's strength ultimately lies with its people."