Concerned that some jerk of a minifigure is going to toss lava at you while you're trying to dig a tunnel through the center of the earth? No big deal, that's exactly what this shield is designed to protect you from.
Concerned that your tunnel is going to cave in on you and bury you under a pile of LEGO®? Sorry, you're out of luck.
Frequently Restocked: Black, Steel
Limited Edition: Pearl Gold