These hoops are made by ThreadsRus. These 4-inch x 4-inch Embroidery Hoops w/ Placement Grids are specifically designed for the following Embroidery Machines from Brother PE-700, PE700II, PE-750D, PE-770, PE-780D, Innovis 1000, Innovis 1200, Innovis 1250D, PC-6500, PC-8200, PC-8500, PC-8500D, Babylock Ellure, Ellure Plus, Emore, Ellure (ESL) and Esante (ESE2). These Hoops provide the user with High-Quality, Durable Hoops at a low cost. We also carry many other sizes of hoops, please check our other Amazon listings in you are in need of other sizes as well.