This four-stroke petrol engine model is ideal for demonstrating engine mechanics in science lessons, helping students visualise energy transfer and mechanical processes. Designed for secondary schools and colleges, it provides hands-on learning with clearly visible moving parts.

• Manual hand-crank operation shows all four engine strokes
• Features moving crankshaft, camshaft, gears, pistons, valves, and more
• Ignition indicated by a bulb (requires 2 x AA batteries, not included)
• Constructed from cast alloys and ABS plastic for durability
• Model height: 350mm
• Suitable for classroom demonstrations in physics and engineering topics