You've probably seen that pincushion found in any store - the tomato with strawberry one. For years we've used the strawberry pincushion without realizing it's very important function. This strawberry pincushion has emery grain inside. Emery is a very hard rock and mixed with other species of mineral, it becomes extremely abrasive. 1 cups more than 1 pound! You can make approximately 4 pincushions (2"x3.5") with this amount... Every time when you stick your needle into an Emery Pincushion, it cleans it of the natural oils in your fingers and any impurities in your cloth. It also sharpens the very tip of your needle, making your work quicker and easier on your hands.