Super easy, just insert it into your masturbation and rub it to dry quickly. G PROJECT HOLE QUICK DRY Diatomaceous Earth STICK: From the moment you insert it, diatomaceous earth sticks firmly absorb and dry water. Compatible with large holes that have been difficult to dry in the rear. Try this product with amazing water absorption and quick drying capabilities. By storing the masturbator in a sealed place, it will remove moisture.