Check the listing for details. Portable Blindstitch Sewing Machine 3-8mmStitch Desk Model Blind Stitch Machine. Condition: New, Made in China. Listed at 204.09 USD. RM-500 Portable Blindstitch Sewing Machine Desk model blind stitch Machine is a special sewing machine to form a single thread chain stitch with a single curved needle.The single thread chain stitch hides itself so that you cannot see it from the outside,which make the clothes look more neat,elegant and professionally made. Usage: It is suitable for blind sewing of knit wear, cotton and chemical fiber materials, especially for sewing diving dress made of neoprene, water-resistant dress, and surfing dress. Up to 1200 Stitches per Minute Speed 110 volts Power Swing-down Cylinder Arm Swing-Away Work Table Skip Stitch Lever Knee Lifter Lever 3 to 8mm Stitch Length Adjustment 7mm Presser Foot Lift Blind Stitch Hemmer Machine.