40pcs Magnets Disc Countersunk Permanent Magnet Fastener Magnets 12mm D Disc Countersunk Pe12mmX3mm,Magnets With Holes,Countersunk Hole 4mm (Disc:12x3-4mm)
- it is Ferrite Magnets,not strong magnets,Grade 5, It is highly stablility udner difficultal environment
- D 12mm x H 3mm with 4mm Hole
- Great for all Home, Office, Craft, Science Projects and Product Manufacturing application