Welcome to AvantartDeco ! Features: 100% new and good quality. For Multifunctional Household Machine Suitable for multifunctional household sewing machines, such as for SINGER 14N654 Simple to install and easy to use, complete the installation very quickly to save time Sewing machine knives help create many professional sewing processes and save a lot of time, thereby greatly improving efficiency The product possess reasonable size, light weight, easy to store and carry Model: Upper Knife: TF123 Lower Knife: TF122 TF123 straight knife size: length 31.6mm,width 8mm,thickness:1.5mm TF122 bend knife size: length 37mm,width 11.6mm,thickness 2.5mm 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