The product is a 2467-piece building block set featuring miniature replicas of the famous London Twin Bridges in a modular architecture theme. Designed by Dr. Star, the set is part of the Modular Buildings product line, aimed at children aged 6 and above. The blocks are made of plastic and come in a box packaging. With a height of 8 inches and a width of 5 inches, this set allows for intricate and detailed construction of the iconic London landmarks.