For Smoother Sewing by Hand or on a Machine! Apply just a touch of All-Purpose Sewers Aid lubricant to a hand sewing needle to sew knits and sheer fabrics easier. When applied to your spool or bobbin thread, Sewers Aid will lubricate the thread guides and tension as it passes through your machine. You can even use it on scissors for easier cutting, on stubborn metal zippers, and more! Each bottle contains ½ ounce.