Our Plants Activity Stick contain calcium cyclonate nitrogen fertilizer and corrosion inhibitors. It can promote plant growth quickly provide the plant with the nutrients it needs make the plant grow thicker and keep the trees and flowers alive all year round. The way to use it is very simple: just take the right amount of nutrition bar and put it into the root of the plant. It can promote the growth of plants maintain the balance of water and nutrition of plants and ensure the growth of plants is more healthy.