Good Ideas CWET-BLK Compost Wizard EnviroTumbler, Black 6.5 ft compost tumbler 2-piece design 100% recycled plastic Fully assembled 4 gal. base harvests compost tea Resistant To Fading: Made Of Durable 100 Percent Recycled Polyethylene Plastic - BPA Free Holds Up To 6.5 Cubic Feet Of Compost Air Vents Create Essential Aeration Can Be Rolled To Any Location For Filling Or Dispensing Base Also Holds Compost Tea