Mantis Back Porch ComposTumbler CT08001 &ndash; Mobile Composter Rolls Direct to The Garden - Sturdy and Durable &ndash; Turns Easily - Holds 37 Gallons &ndash; Low Cost Per Gallon Fully enclosed design eliminates odors and keeps pets/pests out Large removable door for easy filling and emptying Air vents at the top of drum always allows oxygen in Drainage vents at the bottom so excess moisture can escape Made in USA