This Mega Construx Halo Universe Series 3 Elite Minor 8x builder set is perfect for fans of the Halo franchise who are 18+ years old. The set includes interlocking blocks and features a hero character, making it a great addition to any collection. The set is compatible with LEGO, MEGA, and Mega Construx, and is retired, making it a rare find. The theme of the set is space, military & weaponry, and military, making it a great gift for anyone who loves building toys and blocks. The product line is Halo, and the set name is Builder Set. This set is perfect for anyone who is a collector or a fan of the Halo franchise.