Ideal for science lessons exploring forces and mass, this Philip Harris brass hanging slotted mass set is suitable for primary, secondary and college classrooms. Designed for repeated use, it enables accurate and flexible measurement in a range of experiments.

• Includes nine 25g slotted brass masses and a 25g brass hanger (total 250g)

• Each mass is clearly engraved for easy identification

• Polished brass construction for durability and longevity

• Mass outer diameter: 25.4mm; slot width: 3mm (approx.)

• Slots allow quick addition or removal of weights during investigations