Two adjustable edge guides are threaded onto this binder. One sliding rail sets the top edge of the fabric and the other slide rail sets the bottom fabric edge, giving the operator complete control over the bonded configuration. This binder folds the binder/folder material twice at the top (cleaning is completed) and folds twice at the bottom (cleaning is complete). Inlet 1in Outlet 1/4in, Inlet 1-3/16in Outlet 5/16in, Inlet 1-3/8in Outlet 3/8in, Inlet 1-1/2in Outlet 7/16in, Inlet 1-5/8in Outlet 1/2in, Inlet 1-3/4in Outlet 9/16in, Inlet 1-7/8in Outlet 5/8in. Made of high quality iron, very durable and smooth. Suitable for almost all types of T-shirts and tops, especially knitwear. Work directly, zigzag stitching or decorative stitching. We supply 1 year warranty, 30 days money back, 7x24 hours email support. If you have any problem, please don't hesitate to contact us, we will try our best to solve it for you. Fit for Janome CoverPro 900,1000,1000CP, Fit for 1000CPX, Fit for Elna 434, 444, Pegasus W500, Fit for W600 Series, Fit for Wilcox, Fit for Gibbs, Fit for Union Special 52800, 57800,Fit for Yamato DW-300, 1300, DV-200, Fit for 1200 Kansai Special DWK-1802D, 1803D.