Key features

• •[ROKR 3D Puzzle] Elevate your space with the ROKR 3D Wooden Cello Model, now with vivid orange-blue gradient UV-coated details that shimmer in the light. Playing "The Blue Danube" through its mechanical music box highlights a classical instrument's elegance.
• •[Smooth Gear Drive] Turning the mainspring activates the self-drawing bow, driven entirely by precision-cut wooden gears. Watch as the bow slides autonomously over the strings as the cello plays a clear melody - no batteries are required. Perfect for STEM enthusiasts and music lovers seeking dynamic decor.
• •[Clear Assembly Process] Installation takes 4-5 hours. Confidently tackle the 199-piece challenge with our improved instruction manual. Excellent quality ensures a tight installation - no glue required. Spare parts are included in the package to deal with unexpected problems. Contact us to support free replacement parts.
• •[Thoughtful Gift Solution] This ROKR 3D Puzzle is perfect for adults who crave a creative hobby - whether it's a puzzle beginner or a model-making veteran who wants exquisite decorations, it's a good choice for birthdays, Father's Day and anniversary surprises.
• •[DIY Music Box] Measures 8.1in*7.3in*9.3in, turning your desk into a concert hall. Creative body design, gear structure with detailed embellishments, and book-shaped base add literary charm. Music box kit is a good desktop decoration for your office, studio or living space.