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We recommend using this 500g calibration weight for calibrating DRL0048: Advanced Precision Balance 1000g x 0
Size: 178 H x 30
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Pupils Elapsed Time Ruler , pack of 30 VTN12302270 We recommend using this 500gThese linear 12 24 hour analogue digital elapsed time rulers enable pupils to calculate elapsed time in a simpler way by marking start and finish time using dry erase markers, therefore calculating start and finish time. Compare the difference and relationship between analogue and digital time using the analogue (top) or digital (bottom) section of the rule. Ends clip together to show continuous time. Made from durable plastic. Includes: 30 rulers
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