These white linen buttons with a delicate thread design are suitable for bedsheets, nightgowns, or decorating fine lace. These durable, plastic and cotton yarn buttons are the best choice for hot wash laundry that is often washed at 95 degrees. They are boil-proof and mangle-proof, ironable, and can also be dried in a clothes dryer. Prym offers them in sizes 15 mm, 17 mm, and 18 mm. One package contains between 14 to 18 buttons, depending on the button size.