Description: Inner Diameter: The Inner fitting measures about 16mm in diameter suitable for PVC pipe or metal pipe with outer diameter of 16mm. Stable Support: The connector can stably support your greenhouse which is not easily blown down in windy or rainy weathers. 5 Types: There are 5 types of connectors for you to choose meeting your various greenhouse construction needs. Wide Application: Suitable for flower stands and greenhouse frames construction and so on. Material: Made of plastic material the fitting is able to withstand impact not easy to crack or break. Specification: Material: Plastic Color: Green Types: Flat 3 Way Right Angle 3 Way Flat 4 Way Right Angle 4 Way 5 Way Inner diameter: About 16mm Quantity: 4pcs/pack Package includes: 4pcs x Greenhouse Corner Connector Note: 1. Due to the light and screen difference the item's color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.