The Slim Line 2 fits with an adapter bracket and is intended for single head machines.  Once installed, all you do is open the clamping window by rotating the handle down. Insert what you want to sew and release the clamp.  

The Slim Line 2 is ideal for smaller embroidery designs.

Six window sizes are currently available  - 12"x9" - 9"x9" - 8"x8" - 12"x5" - 4.5"x9" window sets.