Each set contains 12 resin and acrylic magnets. Since our inventory is constantly changing, your set may not be identical to the set in these images. We do guarantee that you will get a fabulously curated set in a range of color, size and shape (including cameos, jewels, and both smaller and larger flowers) so that your set will be just as stunningly beautiful! Magnets range in size from 13mm to 40mm. Magnets are strong, neodymium magnets. Each set comes in a rectangular tin with a viewing window and is sealed with a branded band and label.