• 30mm rare earth ring magnets.
• Supplied in packs of 10 magnets.
• Outer diameter 30mm, Inner diameter 25mm.
• N40 magnetic rings with 3.9kg force
• Super strong Neodymium rare earth magnets offer a high magnetic force on small areas.

⚠ WARNING!

• Keep neodymium magnets away from all children. Neodymium magnets are not toys. Do not allow children to handle or play with them. Small magnets can pose a serious choking hazard. If magnets are swallowed, they can cause serious injuries.
• Keep neodymium magnets away from anyone with a pacemaker.
• Neodymium magnets can jump together, pinch the skin and cause serious injuries.