This watering can cap fits securely on the bottle neck, transforming your bottle into a convenient watering can. Ideal for watering plants at home, in the office, or other locations. Color: Red, Green, Blue Cap internal diameter: 28mm / 1.1" Overall dimensions: 46mm x 30mm / 1.81" x 1.18" (L*W) Package includes: 3 red watering caps, 3 green watering caps, 3 blue watering caps Made from durable and lightweight PVC plastic. Provides a smooth, steady water flow that is easy to control. Simply screw the watering cap onto a compatible water or soda bottle and squeeze gently to water. Compatibility: - Designed for bottle necks with an outer diameter of 28mm - Best used with 0.5 to 1.5 liter bottles for optimal control - Use with water only. Avoid adding any substances or particles that may clog the outlet