Sturdy material: our sewing machine blades are made of Stainless steel iron material, strong and sturdy, , can be applied for a long time; Accurate angle blades smooth sewing and good cutting Compatible models: PL1500, PL2000, 925D, 935D, 929D, 1034D and 1134DW, 1634D, 2034D, 3034D, 925D, 929D, DZ123, DZ1234; perfect for upper knife XB0563001 and lower knife X77683001 Convenient to use: the serger knife overlock blade is easy to install and trim the fabric very easily; New serger blades are easy to install and they're pointed and trim your fabric beautifully Multi purpose: this household overlocker knife set is compatible with for 1034D accurate angle blade to smooth sewing and cutting, reliable design; Suitable for replacing your existing blades Colour:silver Material:Stainless steel iron Size:Hook blade 38 x 13mm diagonal blade: 41 x 8mm Package Contents: 2 * hook blade 2 * Diagonal blade Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.