I used these mixed in with the flower shower at my wedding. They flutter down beautifully when thrown, and are very cute. The items for sale are new and unused. Two bags of 100 sheets each are unopened, and I used about 200 sheets from the three opened bags, so there are 300 sheets + α. The size of the feathers is random, but they are about 5-15cm. How about using them not only for weddings, but also for handmade works, photoshoots, or "oshi-katsu" (supporting your favorite idol/character)? [Product Condition] New and unused. Three bags have been opened. Two bags are unopened. [Dimensions] Approximately 5-15cm