Susan Bates embroidery hoops. This 7" hoop has a tiny lip around the inner hoop which works to keep your fabric from loosing its tension as you stitch. I have used these and I think that lip works. I'd recommend these for beginner stitchers, and they also make pretty frames :-)
For this hoop to work properly you have to follow these instructions, which are on the tag on the hoops: "Put inner hoop on the table with the super grip lip up. Put fabric on top of the inner hoop. Press outer hoop down over fabric and under lip of the inner fabric. Pull fabric taut, tighten nut until fabric is drumhead tight."
Choose Colour when placing your order.