2Pcs Steel Overlocker Blade Upper and Lower for Singer 14U 544 554 654 Description: - Material: Stainless Steel, it is hardness and durable to use - Fits for SINGER 14CG744 14CG754 14SH644 14SH654 14U544 14U554 14U555 14U557 - Fits for Pfaff 4762, 4772 and Hobbylock 2.0 - Part Number: Upper Knife #412585+ Lower Knife #550449 - Upper Knife Size: Approx. 25 x 8mm/0.98 x 0.31 inch, - Lower Knife Size: Approx. 40 x 8mm/1.57 x 0.31 inchPackage Includes:2 Pieces Sewing Machine