It is crucial to maintain moisture levels around your bonsai tree between waterings. These humidity trays help accomplish that. Simply spread the decorative rocks [NOT included] into the tray, add water, and place your bonsai on top. As the water evaporates, the humidity around your bonsai will increase.
Dimensions: 7 1/2" x 5 1/4"
Materials: Black Plastic
Model Number: SPTray7"