4-Stroke Gasoline Hand-Crank Engine Model, 13.75" Science at Home_Life Science these concavity microscope slides hold

these concavity microscope slides hold liquid samples for hanging-drop preparations and observation of specimens in suspension

supporting three-rope compound arrangements for advanced mechanical-advantage investigations

Borosilicate beaker shot glasses hold 1

showing the hexagonal bonding within each layer and the weak bonding between layers

25 inches tall with five 4

4-Stroke Gasoline Hand-Crank Engine Model, 13.75" Science at Home_Life Science these concavity microscope slides holdHand cranked 4 stroke gasoline engine model at 13. 75 inches tall with visible crankshaft, camshaft, valves, rocker arms, push rods, and an ignition light that fires on compression.