Military Helicopter Engine Model Clildren Science Educational Toys

Description Item No 388Item Name Military Helicopter Engine ModelSize 210 X 100 X 140mmWeight About 700gMaterial Engine Body Aluminum Alloy Stainless Steel Base Acrylic Plexiglass Plate Cylinder Piston Copper The screw parts are stainless steel Speed up to 300 1000 RPMWarm up time 1 to 2 minutesFuel 95 medical alcoholWorking time 20minutesNote 1 After using it please let the engine natural cool 2 Do not touch the alcohol burner burned tube or the metal to avoid burns 3 Rods at both ends of the activities of joint parts need to regularly add oil lubrication Packing including 1x Military Helicopter Engine Model