The product is Moto Tool Flex Shaft
Comfort grip hand piece allows finger tip control to cut, grind, sand, sharpen, polish and more
Integrated shaft lock button on the hand piece allows for easy accessory changes
Quick connect - easily attaches to your Dremel rotary tool
More flexible cable - provides more comfort during use.
For use with rotary tool models 4000, 400, 398, 395, 300, 285, 275, 200, 100, 8200, 800, 4200, 3000, 8220