Upper Lower Blade Set Compatible with Serger 737

1 Made of high quality steel, strong and durable, having long service time. 2 Upper and lower knife blade designed for 747 / 737 serger, wonderful accessory. 3 Easy to install and easy to use, very fast to complete the installation, saving time. 4 Including upper and lower blade of the package, meeting your different needs. 5 Wonderful replacement part for the old or broken one, directly fitment.

What's in the box
1 x Knife Blade