4in1 Magnetic Fast Frame Kit for Smartstitch S-1001 | S-1201 |S-1501 | S-1501 Ultra | S-1501 Plus | S1502 | S1504 Embroidery MachinesSewtalent supplies 4in 1 embroidery magnetic hoops. 4in1 embroidery magnetic hoop is a set of magnet frames that includes 4 different sizes magnetic hoops . 4 in 1 embroidery hoop sizes details as following: 1 x 6 : It is used for small project such as socks, short sleeves. 2 x 4: It is used one woven and denim fabric. Also used on sock fanny packs, CD cases, handy for non hoopable items. 3 x 4: It is used for different size of pockets, like apron