Pendulum Bobs Improved accuracy and robustness

Improved accuracy and robustness

Clear and sharp optical path with indication of the optical path direction

providing a transparent view of the cockroach specimen

and epoxy-coated

Graduated Plastic Beaker

Pendulum Bobs Improved accuracy and robustnessSet of 6, Pendulum Bobs Material: Brass Diameter: 25mm Product may contain Lead & Brass use in a protected environment, under the adult's guidance. Premium Quality: Pendulum Bobs is made of high grade construction all the way through, excellent build quality and proven reliability across the range. Designed for use in professional laboratories but is an ideal choice for science classrooms and household use. If you need custom order with different