Void Spikes are a block added by Thaumic Bases. It is an upgrade to Thaumic Spikes and will inflict at least 20 () points of damage on a mob or player that comes into contact with it from above, unless they are wearing Void Boots. Mobs killed will not only bloody the Spikes (which can be wiped off with Enchanted Fabric, turning into Bloody Enchanted Fabric), but will also drop experience and aspect orbs.
These Spikes will not destroy items. They can be rendered harmless to all with the presence of a redstone signal.