Features: 1.Made of stainless steel, corrosion resistant sewing hemmer keeps high strength, durable. 2.Used for making the hem of garments, tape binder is suitable for industrial sewing machine. 3.This sewing hemmer is suitable for lockstitch sewing machines and computer controlled lockstitch sewing machine. 4.No need to change the presser foot and teeth during use, convenient and practical. 5.And such sewing hemmer is suitable for wrapping non-woven fabrics and ring-shaped edges for suit bags. specification:Item Type: Sewing hemmer Size: (Approx. 34mm / 1.3in) / (Approx. 36mm / 1.4in) /(Approx. 38mm / 1.5in) / (Approx. 40mm / 1.6in) /(Approx. 45mm / 1.8in) / (Approx. 50mm / 2in) (optional) Scope of Application: 1: Suitable for all brands of sewing machines and computer controlled lockstitch sewing machine 2: Suitable for multi-function sewing machine 3: Suitable for old-fashioned pedal sewing machine In and Out Unit Size: In: Approx. 34mm / 1.3in, Out: Approx. 8.5mm / 0.33in In: Approx. 36mm / 1.4in, Out: Approx. 9mm / 0.35in In: Approx. 38mm / 1.5in, Out: Approx. 9.5mm / 0.37in In: Approx. 40mm / 1.6in, Out: Approx. 10mm / 0.39in In: Approx. 45mm / 1.8in, Out: Approx. 11.25mm / 0.44in In: Approx. 50mm / 2in, Out: Approx. 12.5mm / 0.49in PackageList:1 x Sewing Hemmer