Many recipes for pies and tarts call for blind-baking the unfilled crust – a process made more reliable with the help of these ceramic weights. . Round ceramic weights prevent pie and tart crusts from shrinking or blistering during baking. . After fitting the pastry dough into your pan, press on a layer of foil and line it with the weights. . Ensures an attractive pastry shell that will hold its shape when filled. The unglazed ceramic material also helps to evenly distribute heat, promoting uniform baking. . Enough for two 9" pie shells. Can be used again and again. Includes a reusable mesh bag.