Regularly stropping your swivel knife blades and cutting knives will ensure you maintain the sharpest edge for the best performance of your investment. The strop is easy-to-use and helps align the micro-edge of any blade. The strop is 10-3/4" with a 5-1/2" x 1-5/8" leather strop on both sides. One side is the grain side (smooth) and the other side is the flesh side (rough). With the application of Jeweler's Rouge, the rough side will provide more abrasion than the smooth side.