Hydro Crunch 1.5 cu. ft. 50 l Coco Coir Perlite 70 30 Blend Growing Media Hydroponic Bag Fencing Supplies 016 in Certifications and Listings 016 in Certifications and Listings UL Listed Manufacturer Warranty 3 Year Limited Warranty 1 Year Free Service Contract 90 Day Money Back Guarantee The weed mat is placed around the base of a tree to protect the trunk from trimmer damage and keep the weeds down Coco coir and perlite 70 30 incorporates 70% of the finest coco pith and fiber blend as well as 30% perlite for better aeration and drainage for use in containers we recommend our Hydro Crunch felt fabric garden pots for indoor or outdoor growing