This tip kit is for adding Brush Embroidery flowers with Dimensional Effects. It comes with 2 Pastry bags, 2 tips, 2 couplers, and 2 rubber bands. Fill one of the bags with 1 4oz jar of Dimensional Effects. The tips are interchangeable and the bag never needs to be emptied back into the jar. You simply store the filled bag in a air tight container with a damp cloth at the bottom and it is ready to be used again. If you know you wont be back at it for a while then I recommend you remove the tip and coupler ring and place everything down on damp cloth. Be sure the cloth stays damp while you store it.