This is a standard stereo jack that can be mounted on a chassis for your next hobby electronics project. Measures 3.5mm.
This ultimate chemistry set features 250 mind-boggling experiments!
Great tarantula specimen for the science classroom!
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
Build a magnetic levitating train with this science fair project kit!
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
This glass Erlenmeyer mug makes an excellent gift!