Transfer thread from spool to bobbin effortlessly and quickly; simplicity's sidewinder works with most bobbins, metal or plastic; adjustable tension knob to accommodate different thicknesses of thread;
Portable, and runs on two aa batteries or a power cord so it can be taken to classes
Automatic shut-off when bobbin is full
Convenient and compact for home and bringing to class
Includes machine, AC power cord/adapter
Easily fill bobbins without having to thread and unthread