Buen día， friend. thank para su orden.

Super strong Rare-Earth magnets - they are hard to break apart once they get stuck with each other.
Perfect for sticking notes on fridge doors.
It suitable for DIY projects， such as whiteboard fixing， adsorption of various steel parts，ixing tissue box on the roof， etc.

Specification
Size:approx 15*3mm hole D:4mm
Allow 1-2mm error
Grade:N52
Material: Neodymium Magnet.
perating temperature: ≤80℃
Note:7+ ages， strong magnet，Be careful when use.
Please be care when break apart because Neodymium block magnet have strong Magnetism.

Package include
5X Magnets