Mini Milling Machine for Model Engineer High-precision Multifunctional Working Table ToolsFeatures:The small multipurpose working table is robust and compact, making it ideal for processing small machine tools such as drilling and milling.Ideal for model hobbyists to commission, modify, and fix them..

Stirling Engine Kit Hot Air Engine Motor Model Educational Toy Electricity Generator Colorful LED NARRATIVE DESIGNED -- This engine is not like a typical Stirling model; it is a balanced style. A multicolor LED was installed on the motor. High-grade alcohol produces heat, which causes the engine to..