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digital readout - not precise but within a degree of true
ideal for junior as an into to rocketry and chemistry
and a step down from the bigger or wood-based Air Gliders
Make your own water filtration plant to clean up and reuse dirty water
Wide standard Test Tube 150x20 Labware digital readout - not precise150 mm tall by 20 mm wide standard lab test tubes, rimmed, toughened glass suitable for most uses but not boiling. A workhorse test tube the go to one for most lab (and decorating ) jobs.
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