Special razor sharp curved blade glides through seams smoothly and easily to remove stitches quickly and cleanly. Lightweight handle requires no force. Ideal for serged seams, just slice between the fabric layers, no picking away at the two rows of needle threads! The same principal can be used beautifully with conventionally sews seams too. Another great use is to cut "birds nests" under the embroidery hoop and the needle plate of your embroidery machine, freeing things up to continue embroidering. 5 1/2" long.