SharkNinja Euro-Pro 534 DX Serger with 6 Creative Feet and Soft Portable Case Adjustable differential feed permits serging on contemporary fabrics Automatic looper threader; built-in roll hemming with fingertip controls 1300 stitches per minute; color-coded threading guide; easy tension adjustment Adjustable stitch width and length; free-arm conversion; accessory storage Soft carrying case and illustrated instruction and how-to booklets included