Review on 📱 SALEX Replacement Metal Plates Set for Magnetic Car Phone Holders, Wall, Air Vent Mounts - 16 Pack, Kit of 8 Silver Round and 8 Rectangular Iron Discs with 3M Adhesive Backing by Jedo Krishna

These magnets were a complete letdown. I placed them on my MP3 player and they barely stuck, certainly not enough to hold the player in place during a run. Thanks to my knowledge gained in practice with other Electronics gadgets, I expected more from these magnets. The only positive is that they are rectangular in shape, which makes them easier to handle than circular ones. Unfortunately, I cannot recommend this product for anyone looking for reliable magnetic attachment for their MP3 player.