This is a die-cast metal and plastic display aircraft.
From the manufacturer's website:
The Vickers-Armstrongs Valiant was a British four-jet high-altitude bomber, once part of the Royal Air Force's V Bomber nuclear force in the 1950s and 1960s. It was developed by Vickers in response to Specification B.35/46 issued by the Air Ministry for a nuclear-armed jet-powered bomber. The Valiant was the first of the V Bombers to become operational, and was followed by the Handley Page Victor and the Avro Vulcan; it was noticeably less advanced than its counterparts. The Valiant has the distinction of being the only V bomber to have dropped live nuclear weapons.
This model of the Valiant BK.1 XD818 by Aviation 72 replicates the only remaining complete Valiant, which is currently on display at the Royal Air Force Musuem in Cosford, as part of their Cold War exhibition. It features fine details, and comes with a dedicated stand.