Hoop Tech Slim Line-1 5.5-inch Round Window Frame Sets Brother Internal retaining fingers allow for

Internal retaining fingers allow for proper bill alignment

Uses: Great for personalization

Includes bottom window

Clamp automatically adjusts to different fabric thickness

Hoop Tech Slim Line-1 5.5-inch Round Window Frame Sets Brother Internal retaining fingers allow forSelecting the right window frame for your Slim Line Clamping System is important for your embroidering. Some windows have specific uses and there are 9 sizes to choose from for the Slim Line 1. With each size of window frames, you receive 3 pieces the base adapter that fits into the base of the clamp chassis, the flat aluminum heavy duty top window for thicker and less flexible material, and the stainless steel thin material window for thinner