Cloning with rapid rooters is easy. Take rapid rooter and use a drill bit with your fingers make sure there is a hole all the way through. Use cloning gel / powder on stem of cut clone. Insert stem of clone into hole and push in until tip almost comes out the bottom. Insert clone in rapid rooter plug into plastic seed tray that is in the cloner tray. Make sure to add ph balanced water. I use 6.8 balanced. Place on heated seed mat and place humidity dome on. Should have roots in two weeks or less.