Feature:1. The product is made of stainless steel,and thus is corrosion resistant and has high strength, and is durable.2. The product can be used for making the hem of garments, suitable for industrial sewing machine.3. This product is suitable for lockstitch sewing machines and computer carts.4. No need to change the presser foot and teeth during use, which is convenient and practical5. The product is suitable for wrapping non-woven fabrics and ring-shaped edges for suit bags.Specification:Item Type: Sewing hemmerSpecifications: Approx. 20mm or 0.79in, 22mm or 0.87in, 24mm or 0.94in, 26mm or 1.02in, 28mm or 1.1in, 30mm or 1.08in, 32mm or 1.16inScope of Application: 1: Suitable for all brands of sewing machine and computer controlled lockstitch sewing machine2: Suitable for multi-function sewing machine3: Suitable for old-fashioned pedal sewing machineIn and Out Unit Size:In: Approx. 20mm or 0.79in, Out: Approx. 5mm or 0.2inIn: Approx. 22mm or 0.87in, Out: Approx. 5.5mm or 0.22inIn: Approx. 24mm or 0.94in, Out: Approx. 6mm or 0.24inIn: Approx. 26mm or 1.02in, Out: Approx. 6.5mm or 0.26inIn: Approx. 28mm or 1.1in, Out: Approx. 7mm or 0.28inIn: Approx. 30mm or 1.08in, Out: Approx. 7.5mm or 0.3inIn: Approx. 32mm or 1.16in, Out: Approx. 8mm or 0.31in.Package List:1 x Sewing Hemmer2 x Screw