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CH905ST
Ultra-sensitive earphones with 20K ohm impedance and 57 dB sensitivity.
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From $2.75 /unit
GPULL
Compact 15mm plastic pulley for use in educational science kits and classroom projects.
options
From $0.75 /unit
Petri Dishes With Lid, Clear Polystyrene (100X15 Mm)
Clear dishes for growing mold and bacteria with lids.
Physics Electric Circuit Learning Starter Kit Bag
Beginner's guide to electric circuits with hands-on activities.
Piezoelectric Earphones/Crystal Earphones
Ultra-sensitive earphones with 20K ohm impedance and 57 dB sensitivity.
Pulley Gear, Durable 15mm Pulley
Compact 15mm plastic pulley for use in educational science kits and classroom projects.
Test Tube Rack, White And Clear (Abs Polymer) 20 Holes
20-hole test tube rack in white and clear polymer.
