The Janome Model 521 is a lightweight freearm machine with a top loading, jam proof bobbin and a convertible freearm for circular sewing. It has 20 built in stitches and an automatic four step buttonhole. It offers both stitch width and length adjustment and a drop feed facility for freehand embroidery and free motion quilting. It also has an auto-declutch bobbin winder and is supplied with a two speed foot controller and a hard cover.