Diamond Pen Wax is essential! Fill the tip of your diamond painting pen or multi-placer with the diamond pen wax and you’ll be set to pick up and place your diamonds. Just scoop some into the end and you are good to go for placing several diamonds. You’ll know when it’s time to apply more when it becomes harder to pick up the diamonds. Fill it back up and go back to work. A little goes a long way and our 5-pack will keep you going for hours!