User Summary: The Large Tower LED Walls Pack is part of the Castle Builder System. 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. Some parts lighted by an LED. This pack was specifically designed as an add-on to the Large Tower. This item was initially available as an add-on to a pledge level during the Castle Builder System Kickstarter. The item comes in both painted and unpainted versions. The Large Tower LED Walls Pack comes with these 8 pieces: (4) 6in Tower LED Socket Solid Wall (4) LED Torch