You are purchasing 1 seed packet of 10 (Achillea Sibirica) seeds.
Achillea Sibirica commonly known as Pink Yarrow is a long lived medicinal plant. It was and is still used to this day by bush-craft and survivalist to pack wounds and stop bleeding. It is a great plant to have around.
It attracts beneficial pollinators like butterflies, honey bees, and other useful garden helpers.