5m Retractable Steel Tape Measure with Lock Capacity_500mL Low-noise 220V blower with a

Low-noise 220V blower with a detachable 60-inch hose and adjustable flow control

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

supporting renal anatomy teaching beyond textbook illustrations

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

5m Retractable Steel Tape Measure with Lock Capacity_500mL Low-noise 220V blower with aFor 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.