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Build an incredible machine powered by gears, gravity, and your own hands with the ROKR Marble Run Big Funnel LG501, an interactive 254-piece mechanical 3D wooden puzzle packed with exciting tracks, moving mechanisms, and kinetic action. Designed for builders who enjoy mechanical engineering and hands-on challenges, the Big Funnel transforms precision-cut wooden pieces into a fully functioning hand-cranked marble run. Turn the handle and watch as the mechanism comes to life, sending marbles through an intricate course of funnels, slopes, tracks, spinning wheels, and gear-driven components. The spectacular large funnel becomes one of the highlights of the marble's journey, creating a mesmerising spiral motion before the marble continues through the mechanical course. With approximately 6 hours of assembly time, the ROKR LG501 offers a rewarding building experience followed by endless interactive fun. Best of all, the mechanism operates without batteries, making the movement a fascinating demonstration of manual power, mechanical transmission, and gravity. 🔧 Product Details Specification Details Product Marble Run Big Funnel Brand ROKR Model LG501 Product Type Mechanical 3D Wooden Marble Run Puzzle Number of Pieces 254 Assembly Time Approx. 6 Hours Assembled Size 255 × 235 × 185 mm Material Precision-Cut Wood Operation Manual Hand Crank Batteries Required No Glue Required No Assembly Required Yes ✨ Features Detailed 254-piece DIY mechanical marble run Approximately 6 hours of assembly time Hand-cranked mechanical operation Large funnel track feature Intricate gear-driven mechanisms Multiple slopes and marble pathways Spinning wheels and moving components Gravity-powered marble movement Precision laser-cut wooden pieces No batteries required No glue required Interactive after assembly Combines engineering, creativity, and kinetic motion Impressive desktop or shelf display piece ⚙️ Turn the Crank and Bring the Marble Run to Life Once the ROKR Marble Run Big Funnel LG501 is assembled, simply turn the handle to activate the mechanical system. Your movement powers the internal gears and mechanisms, helping transport the marbles through the structure before gravity takes over and sends them racing along the track. The interaction between manual power, gear transmission, and gravity creates a fascinating mechanical performance that can be enjoyed again and again. 🌀 The Big Funnel Experience The large funnel is one of the model's most captivating features. As a marble enters the funnel, it begins circling around the wide outer edge before gradually spiralling towards the centre. The movement creates a mesmerising display of speed, momentum, and gravity before the marble drops into the next section of the course. It is a simple mechanical principle transformed into one of the most entertaining moments of the entire marble run. 🎢 A Maze of Mechanical Action The LG501 sends marbles through an intricate mechanical course filled with different types of movement. Throughout the run, watch the marbles navigate: The signature large funnel Sloping tracks Mechanical pathways Spinning wheels Gear-driven components Twists and directional changes Every section contributes to the kinetic spectacle of the completed model. 🔩 Explore the Beauty of Mechanical Engineering The ROKR Big Funnel demonstrates how different mechanical principles can work together in a single machine. As you build and operate the model, you can observe concepts involving: Gear transmission Gravity Momentum Rotational movement Mechanical energy transfer Track engineering Cause and effect The result is both an entertaining marble run and an engaging introduction to mechanical design. 🧩 A Rewarding 254-Piece Build With 254 precision-cut wooden pieces and approximately 6 hours of assembly time, the LG501 offers a substantial hands-on project for puzzle enthusiasts and mechanical model builders. Piece by piece, the flat wooden components transform into a complex three-dimensional machine filled with tracks and moving parts. No glue is required, allowing the precision-fit construction and mechanical design to remain at the centre of the building experience. 🔋 No Batteries Required The ROKR Marble Run Big Funnel is powered manually. Simply turn the crank to activate the mechanism—no batteries are required. This purely mechanical operation makes it especially satisfying to watch the finished machine work, as every movement begins with the energy you provide. 🏆 Build, Crank & Watch the Marbles Race Once completed, the LG501 measures approximately: 255 × 235 × 185 mm Its intricate wooden structure and moving mechanisms make it an excellent addition to: Desks and workspaces Bookshelves Display cabinets Hobby rooms Mechanical model collections ROKR marble-run collections It works equally well as an interactive model, a kinetic display piece, or a conversation starter. 🎁 Perfect for Puzzle & Engineering Enthusiasts The ROKR Marble Run Big Funnel LG501 makes an excellent gift for: Marble-run enthusiasts Mechanical puzzle builders ROKR collectors Engineering fans DIY hobbyists STEM enthusiasts Kinetic model collectors Anyone who enjoys gears and moving machinery ⭐ Why You'll Love It Detailed 254-piece mechanical project Approximately 6 hours of rewarding assembly Signature large funnel feature Hand-cranked operation Intricate gears and moving mechanisms Exciting gravity-powered marble action No batteries required No glue required Interactive long after assembly Fascinating demonstration of mechanical principles Unique decorative and kinetic display piece 🌀 ROKR LG501 • 254 Pieces • Approx. 6-Hour Build • Hand-Cranked Mechanical Action • Signature Big Funnel • No Batteries • No Glue • Build the Machine and Watch the Marbles Race ⚙️🔴🎢✨