The Halo Mega Construx Infinite Series 2 Blind Bags are sealed plastic building toy sets featuring characters from the Halo franchise, specifically Chief. These interlocking blocks are part of the 2020 release and are designed for ages 8 and up. The sets are part of the Halo product line and are compatible with Mega Construx products. Each blind bag contains a surprise set from the Halo universe, making them a fun and collectible option for fans of the series.