Containing four liquid pads, this set has the durability to last a long time. These liquid pads for your Mighty or Crafty Vaporizer are easy to insert into the filling chambers and are very absorbent. With only a few drops, you will experience an aroma pleasing to the senses. The four pads are made of stainless steel and shaped like fibers woven to one another so drops of liquid or oil stay and linger longer. They are also great conductors of heat to vaporize the drops more efficiently. These pads are not intended for use with the dosing capsules.