Essential tool collection includes a decorating bag cutter to easily and precisely cut decorating bags, and two sizes of brushes to make cleaning decorating tips quick and easy. Bag cutter cuts bags with a quick turn. To use cutter: Insert inner coupler in bag. Slide on cutter with arrow pointing toward coupler. Squeeze side tabs, twist and cut! Use and Care: Before first and after each use, hand wash in warm, soapy water. Rinse and dry thoroughly.