The inside dimension of this hoop is 7.5 x 11″ (7.5×11″, or 190 x 279mm)
Actual sewing area depends on brand of machine approximately 6.75 x 10.25 or 170 x 259mm
Mighty Hoop has a diverse selection of sizes and matches perfectly with Smartstitch embroidery machines.
Youtube video on adding custom frames to the S-1201:
Youtube video on adding custom frames to the S-1501:
Youtube video on separate and keep your Mighty Hoop: