The Mega Bloks Halo Set 96981 UNSC Spade vs. Skirmisher is a retired building toy set featuring interlocking blocks in a Halo theme. The instruction booklet included in this listing provides guidance on how to build the UNSC Spade and Skirmisher set, allowing fans of the Halo franchise to create and customize their own battles. This product is perfect for collectors or enthusiasts of building toys, offering a unique and exciting way to engage with the Halo universe.