VEVOR Tree Watering Rings, 4 Packs 10 Gallons Self-Watering Tree Bags, Slow Release Tree Irrigation Bags up to 30 Days, Heavy Duty Automatic Drip System for for Planting Gardening Trees and Shrub

VEVOR Tree Watering Rings, 4 Packs 10 Gallons Self-Watering Tree Bags, Slow Release Tree Irrigation Bags up to 30 Days, Heavy Duty Automatic Drip System for for Planting Gardening Trees and ShrubIdeal for Drought ConditionsDurable DesignTime-Saving & Water-EfficientYear-Round UseVersatile ApplicationsEasy to UseSet Quantity: 4-piece set,Capacity: 10gal / 37.8L,Item Model Number: TWB-10gal-ZW4,Minimum Height Required: ≥1.97in / 50mm,Net Weight: 1.81lbs / 0.82kg,Main Material: PVC + Water Retaining Agent,Compatible Tree Diameter: 3.54in / 90mm