Paper clips in container, set of 10

For qualitative determination of the attractive force at various points on a permanent magnet, as well as for simple representation of a magnetic line of force around a bar magnet (field line);
Paper clips, set of 10, in box
Dimensions of the paper clips: each
Mass of the set (without tin): 4 g
Weight of the set (with tin): 10 g
Dimensions of the set (with tin): 41 x 41 x 34 mm