Transparent Magnetic Field Demonstration Box

Transparent rectangular box for observing magnetic field patterns in teaching demonstrations.

The seller photographs show iron filings arranged around a central bar magnet marked N and S. Dimensions and weight are seller-image references, not independent measurements; confirm the supplied configuration, including the pictured magnet, before ordering.

Format: Transparent rectangular box
Illustrated demonstration: Iron filings around an N/S-marked bar magnet
Seller reference dimensions: 21 × 11 cm
Seller reference weight: Approximately 328 g