Retrol & OKMO Ball Hopper Model Engine – Vintage Mechanical Engine Replica with Wooden Base, Mechanical Ignition, Water Cooling, Collector Display Gift for Hobbyists & Adults

⚙️【Specifications】Product Dimensions: 20.4 × 10 × 18.4 cm（8.03 × 3.94 × 7.24 in） Package Dimensions: 25 × 18 × 20 cm（9.84 × 7.09 × 7.87 in） Material: Metal + Solid Wood Ignition: Mechanical Ignition System Cooling Method: Water Cooling Display Base: Wooden Base Age Recommendation: 16+ Packing: Graphic Carton📦【Package Includes】1 × Engine (with Wooden Display Stand & Ignition System) 1 × Drill Starter Stick 1 × Accessory Bag 1 × Instruction Manual

• 🛠️【Unique Structure & Functional Design】Scaled-down reproduction of the Ball Hopper engine featuring a ball-top water tank, internal oil cup, and crankshaft lubrication channel that supports continuous motion and presents a classic vintage mechanical profile.
• 🔥【Innovative Ignition & Stable Support】Equipped with a newly engineered mechanical ignition system with the igniter and battery stored inside a matching wooden box, integrated with a solid wood base that strengthens stability and operational consistency.
• 🏡【Industrial Retro Build Quality】Elements such as water cooling, oil pathways, and mechanical ignition are combined with finely crafted woodwork, forming a refined industrial aesthetic suited for desktop display in offices, studies, and workshops.
• 🎓【Mechanical Demonstration Model】Shows visible crank movement, lubrication flow, and ignition structure, allowing clear observation of mechanical interactions and engine principles for those interested in hands-on mechanical understanding.
• 📦【Presentation & Protective Packaging】Delivered in a graphic carton with a fitted wooden display stand, ignition system box, and organized accessory compartments that ensure safe transport and a clean, display-ready unboxing experience.