Sy-i magneter 18x3 mm. firkant, 2-pak

These magnets are fixed in a square, waterproof plastic case and come in sets of two. They are suitable for sewing onto garments, hangers, and pins, with a strength of about 2.8 kg each.

• The description claims that the magnet's strength reduces with the thickness of the fabric between them.
• The description claims that the magnets are water-tight as long as they are not sewn through their air bubble.