Metal Balance Stirling Engine Model Generator Micro External Combustion Engine Model Type_LTD Stirling Engine so the parcel doesn't include

so the parcel doesn't include the battery box

Package Dimensions: 30*15*15cm

the clear transmission process is clear at a glance

Product Weight: 2200g

Package Weight: 2355g

Metal Balance Stirling Engine Model Generator Micro External Combustion Engine Model Type_LTD Stirling Engine so the parcel doesn't includeT16 03 Balance Style Metal Cylinder External Combustion Stirling Engine Model Educational Toy Specifications: Item name: T16 03 Balance Engine Model Model: T16 03 Size: 185*105*150 mm Weight: 1200g Package weight: 1400g Operating voltage: 5~10V Heating cylinder inner diameter: 20mm Piston stroke: 16mm Piston diameter: 16mm Flywheel diameter: 64mm Motor cover material: 6061 aluminum alloy Motor type: brushed permanent magnet motor Power piston and