star diamond necklace set Plastic
US$ 135.00
Philip Harris Lever Kit 49631 Accumulative electricity usage range
$189.99
Description
Accumulative electricity usage range
The mystery element also encourages tactile exploration and sensory development
and performance
We recommend supervision when using this product
Philip Harris Lever Kit 49631 Accumulative electricity usage rangeSupplied as a kit for eight pupils and consists of five MDF beams (600mm x 44mm x 3mm) graduated every 38mm and with a groove across its centre to locate the fulcrum point. Also included are four fulcrums 32mm x 32mm x 64mm and forty metal blanks 25mm square. The masses of the blanks are matched to 1%.
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