Plastic Test Tube Peg Drying Rack Size:16mm x 50 Rubber striking disc on a

Rubber striking disc on a handle delivers a clean blow that sets a tuning fork ringing at its fundamental without bruising the tines or coloring the tone with extra overtones

and White Elephant gifting humor

Borosilicate glass equilibrium-tube apparatus with four connected shapes — straight

Pear-shaped rubber pipette bulb holds 20mL for controlled suction in pipetting procedures with compatible serological and volumetric glass pipettes

satellite side impact sensor

Plastic Test Tube Peg Drying Rack Size:16mm x 50 Rubber striking disc on aHolds test tubes inverted on peg posts for air drying after washing, with 96 peg positions accommodating full class sets between washing and reuse.