US$ 28.99
providing the lowest-value reference in the line for low-resistance Ohm's-law and bridge work
a screen and lid
and an 18mm attachment diameter for pulling small weights in mechanical-advantage experiments
and raised graduations with full autoclave and dishwasher tolerance
Four vinyl-coated prongs grip flasks and burettes up to 4
Reading Magnifier, 75mm, 15cm Focal Length Science at Home_Math providing the lowest-value reference inLarger aperture 75mm lens at a 15cm focal length captures more of a specimen at a glance, the chrome plated metal frame and handle keeping the reading magnifier classroom durable.
US$ 28.99
US$ 28.99
US$ 32.20
US$ 22.90