Prevent crawling insects from ascending trees, shrubs, vines and woody plants by forming a barrier they can't cross. Common crawlers include ants, gypsy moths, cankerworms, pecan weevils, and codling moth. Adjustable to any size trunk between 2" - 24"; multiple strips may be required. Use on smooth or rough bark trees; foam strips included if needed to snug band against tree. Each band is 12" long.