1Excellent Stainless Steel Material: This sewing machine upper lower Blades are made of excellent stainless steel material, which is sturdy and abrasion resistant to ensure that they remain incisive during long time use and provide stable cutting results. 2Multifunctional: This overlocker upper and lower blade set is multifunctional and can handle both light and thick fabrics with ease, reducing thread breakage or skipped stitches caused by blade wear. 3Accurate Design: This sewing machine blade replacement has been accurately designed to ensure a perfect fit with the needle plate and fabric feed teeth of the overlock machine for accurate sewing results. 4Good Compatibility: This overlocker upper and lower blade has good compatibility and is suitable for Bernette 134, for 134D, for 134DL, for Europro 14533, for 534DX, for 14T948DS, which is practical. 5Wide Application: This upper and lower blades can significantly improve sewing efficiency, whether you are making clothes, curtains or sheets and other household items, you can finish the sewing work at a faster speed, saving your precious time. 2 xSewingMachineBlades