• Metal
• 🎥 Vintage Projector Design - Unique industrial aesthetic inspired by classic film projectors. Features solid brass core components and quartz glass heating chamber for authentic retro appeal (16x14.5cm display size)
• 🔩 Premium Brass Construction - Critical components crafted from solid brass for enhanced durability and heat resistance. Stainless steel linkages ensure smooth operation without lubrication requirements
• 📚 Educational Thermodynamics - Demonstrates external combustion principles through visible piston cycles. Quartz glass cylinder maintains clarity during extended operation - ideal for classroom demonstrations (ages 15 )
• 🎁 Multi-Functional Display - Combines scientific function with decorative appeal. Gift-ready packaging (750g) suitable for educators, collectors, or office decor - includes protective casing for display
• ⚠️ Safety-Certified Operation - Requires 95% alcohol fuel. Base remains cool during operation while heating chamber reaches 150°C - handle with included tools only