This is the ROKR Manta Ray Mechanical 3D Kit [MI06]

ROKR has created an impressive mechanical replica of the manta ray that brings the creature's elegance to your desk. With its familiar chevron pattern and effortlessly fluid motion, this miniature DIY 3D model captures the manta's seemingly weightless grace. The included base elevates the model, and a press of its button sets the pectoral fins gliding in smooth arcs, the tail sways at a gentle, low frequency, and the LED lights pulse softly in the same rhythm. Press the button again to unleash the rapidly flashing and fin-accelerating Burst Mode that mimics the manta's sudden burst of speed to evade danger. Built by your own hands, it's a captivating fusion of engineering precision and the beauty of marine life.