TMI 135.23.3.200507 - Direct Drive 4 Thread Cylinder Bed Overlock Sewing Machine Product Details Max Sewing Speed: 6000 Spm Application: 4 Thread No. of Needle: 2 No. of Thread: 4 Needle Gauge: 2 Stitch Width: 3 â?? 4.5 mm Stitch Length: 3.8 Height: 5.5 Differential Ratio: 0.7-2.0 Overall Dimensions: 470*365*500 Weight: 30/37 Power: 550W