Grow It Now! - Plant Protectors/Frost Guards with Closable Vent, Pack of 3 (Anchor pins not included) (Large) Protects plants from heavy wind, frost and snow Stimulates plant growth - allows light to pass through freely, has ventilation, and retains warmth Optional opening top - Easy watering access and better ventilation Bottom edge of the dome has four tabs for anchoring pins (Pins are NOT included) Has a cutout along the bottom edge to easily run drip irrigation