Two-stroke diesel engine model, shows the internal structure and operating principles of an air cooled two-stroke engine. All parts are aluminum and plastic, Mounted on a base.
Orbit Organic Chemistry Models Class Kit, to understand the variety of organic molecules, Contains twelve kits and instructions, learn about key concepts in organic chemistry through hands-on activities, Compatible with Hubbard Molecular Model Kit R-MOD2
Bell Demonstration Model, All The Components Of Electric Bell Are Mounted On A Large Panel. Allwiring Is Visible And Parts Are Of Large Size. Operates On 4-6 Volts Dc, Mounted On A Large Panel, All Parts Easily Visible, Rigid Constructions