If you have an embroidery machine or have ever had a thread jam where the fabric is caught in the needle plate hole this tool is a must have. You use the hook and place it under the fabric to loosen the thread by pulling it toward you then use the knife to cut the threads. Then you can remove the needle plate to free the jam. Therefore, not putting a hole in your fabric. Great tool. $34.99 Call us at 847 356 5100 to order one today!!!