CoverPro 900CPX Coverstitch Machine with Bonus Accessories by Janome Color guide helps you adjust for a soft or tighter stitch without using the manual Finish sleeves, cuffs, waistbands and other hard-to-reach seams faster and with better handling The largest sewing space available anywhere: 4 inches x 5.5 inches (100mm x 143mm) Janome's exclusive Seam Tightening System employs a spring instead of the thread tension dial to reduce in the looper thread | Upper needle threading is color coded, easy to see, and smooth Bonus Package Includes: Chevron Print Serger Tote, 2ea Maxi-Lock Serger Thread (White), 2ea Maxi-Lock Serger Thread (Black)