This is the spray stiffener to use if you are looking to make fabric and felt items with more stability. Only a few coats of SpraynBond Fabric Stiffener Spray are needed and it dries quickly, too! You can see the difference between the two letters we sprayed and read more about the cake toppers we made in this tutorial! Comes in an 6.76 ounce bottle -the more the item is sprayed, the more stiff it becomes. By Therm O Web.