5m Retractable Steel Tape Measure with Lock Capacity_500mL Adjustable height from 3 to

Adjustable height from 3 to 16 inches distinguishes this polished hardwood single-funnel stand

sliding through a full octave from C5 (521Hz) to C6 (1024Hz) for hands-on comparison of length to fundamental frequency

Designed for science experiments but can also be used in heaters and electrical appliances

Element-stamped 20mm solid iron cube marked (Fe) for density

Life-size digestive system model in two parts reveals the esophagus-to-rectum path with stomach

5m Retractable Steel Tape Measure with Lock Capacity_500mL Adjustable height from 3 toFor larger laboratory and shop measurements requiring rigid extension, this five meter retractable tape measure pairs a 13 mm curved rust proof carbon steel blade with a locking control.