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Flammable: Caution is advised due to its flammable nature
this ray box is an essential tool for teaching and learning about optics and light behavior
Adjustable Components: The aluminum rod features an adjustable slide that serves as both an index and a stop
Ultimate Bulk Premium Molecular Model Set 555 pcs With Instruction Manual
and tool belt
Metric Weight Set 54-Piece Flammable: Caution is advised dueStackable hexagonal shaped, color coded weightsUse with a scale or balance to demonstrate mass measurementSet of 54 contains 20 each of 1g and 5g weights, plus ten 10g, and four 20g weightsIncludes storage box
