Set of 4 strong hooks hold up to 20 pounds each! Each hook is approximately 1.5" in diameter.
So strong, don''t let them touch each other!
These are nice, strong magnetic hooks! 3 or 4 will hold a nice sturdy calendar pocket chart. But watch out, do not let them touch each other back to back out of the package! My husband is very strong, and when I took them home, he had a hard time but finally got them apart!