User Summary: The LED Castle Assortment Pack is part of the Castle Builder System. It is made of "Dwarvenite" and includes some metal parts. Some parts have LED circuitry (switch, battery, and socket) to support LED lighting attachments. Some parts lighted by an LED. 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. CBS parts are from the City Builder System series. The LED Castle Assortment Pack comes with these 16 pieces: (4) LED Wizard's Spire (4) LED Valorian Spire (4) LED Gargoyle Guardian (2) LED Claw Brazier (5) LED Circular Socket (2) CBS - Stone Torch Wall (4) CBS - LED Torch Stand