Including unique designs for each bot in "The Renegades" and "Robophobia" expansion packs, as well as unique sculpts for all of the captains in the base game and the "BioDefend," "Ebbwall" and "Robophobia" expansions, the BrassMag figures are pewter sculpts with a brass alloy finish and a magnetized bottom, allowing them to adhere to burncycle’s weighted chips. The chips have been designed with the BrassMags in mind, ensuring that you’ll never have to worry about the figures obscuring any important information.