Weights and Balance Principle Lever Ruler Simple Machine Physics for

Description: - Elegantly designed and easy to use by students and teachers - Includes Metal Slotted Weights( 50g x 10PCS) and a Balance Principle Lever Ruler - Helps teaching how changing the distance from the fulcrum changes the mechanical advantage - Sturdy construction of the fulcrum balance makes it perfect for classroom demonstrations - Adjust the weights positons as your strength, flexible teaching and help better understanding Specification: - Material: Iron and aluminum alloy - Full Height: about 32cm (installed) - Ruler Length: about 50cm Package Includes: 1 Piece Balance Principle Lever Ruler 10 Pieces 50g Slotted Weights 1 Piece Stand