Handcrafted rosin bag made from white flannel with a geometric print A vintage button is added for a decorative touch. Bag measures app 3.5" square. No rosin is included in this purchase-it's for display purposes only. I started making these because there are rosins out there that don't come in a bag,and if they do,the bag is so frightfully dull. I feel every item in a fiddle case should look and feel special and carry a uniqueness about it. It shows the fiddlers personality to a degree and enhances their mystique,and if you carry more than one type of rosin,these make it easier to identify. Using vintage buttons helps keep them out of landfills and is a green solution.