Friction Box, 1 Each

The Friction Box by United Scientific is a smooth sanded wooden box for coefficient of friction studies when larger loads are required. Measuring 6 in x 3.5 in x 2.5 in, it accommodates a load of 2 kg or more, and two strips on the bottom form the sliding surface. Physics teachers use it with spring scales or force sensors to extend friction labs beyond light-load block experiments.