The LEGO 76105 Marvel Hulkbuster Ultron Edition Super Heroes Avengers set is a retired LEGO Studios set featuring 25 pieces, including a Hulkbuster character. Released in 2018 and retired in 2019, this limited edition set includes a Stunt Go-Cart with a display plate and is battery powered. The set caters to fans aged 14 and above, offering an exciting building experience for boys and girls interested in cars and vehicles within the Marvel Super Heroes theme. Made of plastic in Denmark, this collectible set is a must-have for LEGO enthusiasts.