<ul> <li>Made of high quality polyethylene ( HDPE ), Eco-friendly material that does not pollute water or soil with any contaminates</li> <li>Keep spread of tree roots from intruding on the integrity of rock wall, concrete walkway, water line pool and deck. Perfect for bamboo, redwood, raspberry, blackberry, loganberry, oak, bermuda grass</li> <li>Prevent your neighbor's bamboo roots from coming over and disturbing your lawn</li> <li>Easy to install below ground, choose a barrier that is approximately 12-inches deeper than the depth of the roots</li> <li>12 inch W x 50 L,2Pack 30 mil thickness. Provide 65-75 Pound Anti piercing</li> </ul>