3M MAGNETIC STICKER FOR BLUETOOTH SPEAKER

3M ADHESIVE BACKING: The magnets have a 3M adhesive backing, ensuring that they stick firmly to most smooth surface without falling off. After the magnetic tape stick on wall, pls kindly wait 24 HOURS for the 3M firmly, then hang your objects. 3M bond strength will achieve 90% after 24 hours, and will achieve 100% after 72 hours.
EASY TO CUT: The flexible magnetic tape is easy to cut to any size and sharp, Ideal for mobile stand, home organization, electronic items stick, office use, and more. Use them on whiteboards, metal surfaces, or even as decorative magnets.
PRE-CUT MAGNETS: Each magnet is precut to a 30MM,35MM,40mm  diameter, saving you time and effort. No cutting or trimming required!
Sizes: 30*1,35*1,40*1