Slotted Weight Set Of 13, With Hanger & Case, 1 Each

The Slotted Weight Set Of 13, With Hanger & Case by United Scientific is a 250 g set of thirteen slotted brass masses, including nine identical 20 g pieces, supplied with a hanger and storage case. The equal 20 g steps suit light springs and low-load pulley experiments. Physics teachers use it for Hooke's law practicals and classroom demonstrations of force and weight.