Our 30mm billy balls are 100% as big as 25-30mm, and some of them even have 40mm in diameter. You can't find such quality at this level.If you are looking for the big balls' heads, then 30mm is your optimal choice.If you want some mix sizes, then you can buy some 10mm and 25mm billy balls to make some more arrangements. the little white stuff on the billy balls are 100% natural since they are hand-picked directly from the soil. It's not moldy. You can use a cleaning brush and wipe it gently to remove the white stuff. 30pcs in total;All billy balls are hand-picked by our farmers, sometimes there are manual mistakes and result in quantity missing. Don't worry. If you receive these balls less than 30pcs, please let us know.photos are 100% real 100% natural dried billy balls and the smell is natural. If you don't like the smell, just put it under direct sunshine for a few hours and the smell will disappear. Color: Natural yellow; The billy balls are harvested from the soil and dried in the sun, so it is natural that the balls have a little dirt and dust. In other words, they are intact and do not dye by chemical additives. One bouquet is 30pcs for fullness, you can order a few more bouquets. 30Pcs Natural Dried Flowers Craspedia Billy Balls Flowers 100% Natural About Size About Moldy Problem and Smells About Quantity Elements for Dried Flower Bouquets About smell About color problems About Fullness