welocme to savingbus! Features: 100% new and good quality. PART #: H004131 UPPER KNIFE FIT FOR Elna Serger Machine Models: 604E, 614DE, 624DSE, 634, 644, 704DEX, 714DE, 744, 744DEX, 745, 845, 904DCX, 905DCX, 925DCX, 945, PRO4, PRO4DC, PRO4DE, PRO5DC, PRO5DE FIT FOR Pfaff Serger Machine Models: 4842, 4850 Coverstyle, 4852, 4862, 4872, 4874 PART #: H004137 Lower Serger Knife FIT FOR Elna Serger Models: 604E, 614DE, 624DSE, 644, 704DEX, 745, 845, 904DCX, 905DCX, 945, PRO4, PRO4DC, PRO4DE, PRO5DC, PRO5DE FIT FOR Pfaff Serger Models: 4842 Package list: 1pc x Upper Looper or 1pc x Lower Looper or 1 set Looper(1pc Upper Looper and 1pc Lower Looper) Note: 1.Please allow 0.1-2cm error due to manual measurement. 2.The color may have different as the difference display, pls understand. Please check the tracking information on teacking website Please contact us by meesage,e-mail,or trade mnager Check the package and item caefully All sales are considered final. If merchandise you received is defective or damaged in the long transit, please contact us freely. We will give you a satisfying solution ASAP. If other reason, you want to ship it back to us, buyer will be responsible for the returning shipping fee and we will send the replacement after receiving the returned item. Item will be sent out within 24-72 Bussiness hours after payment confirmaiton.(Excluding Weekend & Holiday).If you have request such as color,address and so on,please just leave us message,then we will arrange it as your request. We ship to alipay confirmed address ONLY. Please confirm your address in alipay is matched with your shipping address before you pay