Speed dial that allows you to set your machine to desired stitch speed. * On/Off button to start and stop your machine. Easy to use knob controls stitching speed. * Pulse Button--machine runs until you release it, or touch and release for a single stitch. * Thread Cutter Button--activates your machine"s thread cutter. (Only compatible with the Juki 98 series.) * Velcro Straps for easy attachment to your frame.