About this item This fits your . Make sure this fits by entering your model number. - Convenient: It is powered by USB, reasonable application of home environment props, and power supply standards without electric shock concerns. - Value: After assembled, put the model in the dark and turn on the switch, the model will emit beautiful and charming lights, greatly increasing the viewing and playing fun. - For the electronic instruction manual or any question, please contact with seller. - Compatible with Lego 21319 Building Blocks Model, Led Lighting Kit for Lego Ideas Central Perk Friends. (LED Light Only, No LEGO Kit) - Reliable Quality: ABS environmentally friendly plastic is used, ensuring the pleasant experience during use.