These magnetic pin backs have two pieces: a metal bar with adhesive strip and a plastic piece with two strong rare-earth magnets. Affix the metal bar to your FLORA projects-- it's just the right size! Then attach your FLORA project to any garment without poking holes in your clothes. The magnets are strong enough to hold up even a hefty circuit! We recommend against soldering/brazing/welding to any part of the magnetic pin back, as the galvanized steel plate would release harmful zinc fumes and heat demagnetizes neodymium magnets. Magnetic Pin Back (14:35)Technical Details Product Dimensions: 45.3mm x 13.3mm x 5.1mm / 1.8" x 0.5" x 0.2" Product Weight: 10.0g / 0.4oz https://elecena.pl/product/22710839/magnetic-pin-back 2023-03-06 https://elecena.pl/product/22710839/magnetic-pin-back 2023-12-27 https://elecena.pl/product/22710839/magnetic-pin-back 2024-09-19 https://elecena.pl/product/22710839/magnetic-pin-back 2024-11-29 https://elecena.pl/product/22710839/magnetic-pin-back 2024-11-30 https://elecena.pl/product/22710839/magnetic-pin-back 2025-11-28 https://elecena.pl/product/22710839/magnetic-pin-back 2025-11-29