The MakerBot Labs Experimental Extruder is a cutting-edge 3D printer accessory designed specifically for MakerBot replicators. Made in the United States, this extruder is compatible with various MakerBot models, including the Replicator, Replicator+, Replicator Z18, Replicator Mini, and Replicator Mini+. With its innovative design and high-quality construction, this extruder allows users to experiment with different printing techniques and materials to achieve unique and intricate 3D prints.