I have tinkered with these magnets made of shells collected on the Mediterranean, using a hot glue gun stylish fridge magnets. I am thrilled to have these magnets Real Power. Despite the absolutely minimalist size (only about 5 mm in diameter and 2 mm thick) holds a single magnetic mussel and about 5 A4 pages on the fridge fixed! So I did not expect. For my purposes perfectly genuine and a strong buy recommendation.