Handcrafted rosin bag made from official NFL flannel for Chicago Bears fans. 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. Great for NFL fans of all ages! Using vintage buttons helps keep them out of landfills and is a green solution.