DURABLE AND SAFE - These are some weeding cloth, made of nonwovens material, durable and safe. they are practical and easy to use. SIMPLE INSTALLATION - These natural weed control mats already have their own shape-round, they can be easily installed in your flowerpots and the roots of other indoor and outdoor plants and trees. ADJUSTABLE SIZE - Our tree rings are easy to work with and can be further trimmed for a custom shape that fits any pot, center hole can be enlarged if needed, lightweight design easily slips around trees or smaller plants. PROTECT THE TREE - Protect the tree trunk from mower or trimmer damage, keep down weeds and maintains a neat appearance in the landscape. IMPROVE EFFICIENCY - They have the good weeding effect and save your time.