These magnets are really powerful and very difficult to get apart if two come together. Only way I've found safe to separate them is sliding them apart. I bought them to help provide extra hold for register/vent covers. Typical registers when closed don't stop air flow 100% so I've purchased magnetic covers. Although they are magnetic, the covers don't hold as well on ceiling registers. The magnets will ensure a secure hold.
MIKEDE 8-Pack Powerful Neodymium Magnets With Double-Sided Adhesive - Ideal For Fridge, Crafts, DIY, Science, Building & Office Projects - Rare Earth Magnets For Strong Grip
39 Review
50Pcs Strong Neodymium Magnets With Hole & Mounting Screws - Heavy Duty Rare Earth Disc Countersunk For Locker, Tool Storage & Crafts
31 Review
Power Up Your Projects With MIKEDE Cube Neodymium Magnets - Super Strong Rare Earth Magnets For Science And DIY
31 Review
16-Pack Powerful Neodymium Bar Magnets | MIKEDE Rare Earth 🧲 Metal Magnets with Double-Sided Adhesive | 60 x 10 x 3 mm
35 Review