It was actually from Amazon. Link below. You would want the large pieces. Unfortunately, they have either changed the product or there's an issue with the listing because it shows pictures of mica but the product name is for a stencil set . www.amazon.com/US-Artquest-Graphic-Products-Stencil/dp/B00161O5UI/ref=sr_1_2?crid=2IXEM90Y63MKK&keywords=large+stove+mica&qid=1644610334&sprefix=large+stove+mica%2Caps%2C103&sr=8-2