LED Walls and Corners Pack is part of the Dungeon of Doom series. It is made of "Dwarvenite" and includes some metal and magnetized parts. Some parts have LED circuitry (switch, battery, and socket) to support LED lighting attachments. This item was initially available as an add-on pack during the Dungeon of Doom Kickstarter. The item comes in both painted and unpainted versions. LED Walls and Corners Pack comes with these 16 pieces: (4) Vaulted Wall w/ LED Socket (4) Vaulted Corner w/ LED Socket (8) LED Angled Torch