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This 9-piece cylindrical mass set with hooks is designed for physics laboratories, STEM classrooms, and mechanics demonstrations. Each mass features an integrated hook for easy suspension on spring scales, force meters, pulleys, and other experimental apparatus.
The durable painted cast iron construction provides long-lasting performance in busy classroom environments while maintaining consistent mass values for accurate measurements.
The set includes a convenient plastic storage block that keeps each mass organized and easy to access during experiments.
Hooked masses are commonly used in physics experiments involving force, tension, torque, pulley systems, and Newton’s laws.
1 × 10 g mass
2 × 20 g masses
1 × 50 g mass
1 × 100 g mass
2 × 200 g masses
1 × 500 g mass
1 × 1000 g mass
Total pieces: 9 weights
Durable painted cast iron cylindrical masses
Integrated top hook for suspension experiments
Stackable design using lower hook receivers
Ideal for force and mechanics demonstrations
Includes plastic storage block for organization
Hooked mass and pulley experiments
Spring scale and force measurements
Newton’s Second Law demonstrations
Torque and rotational equilibrium labs
Mechanics and engineering investigations
Material: Cast iron
Finish: Protective painted coating
Mass range: 10 g to 1000 g
Number of pieces: 9
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These are some of the best masses I have found yet. Reliable hooks, proper mass, and the paint seems thick to help passivate the metal avoid corrosion and giving a little softer surface. My other masses that I have had for years that are similar are balanced with small beads or shot, I have had troubles with student opening them and changing the mass. These cast iron masses do not have that problem.