Features: Useful tool: These PVC pipes and PP fittings are resistant to low temperature and impact. The inner surface of the pipe wall is smooth, easy to install, and won't scratch your hands. Protect your plants: The greenhouse frames create the ideal environment for growing a variety of plants, extending your growing season and protecting your plants. Specifications: Material: PVC and PP Size: approx. 1.2 cm/1/2 inch (tube diameter) Package includes: 60 x PVC pipes 42 x PP fittings Notes: Product does not include greenhouse cover. Tent connections are not measured by outside diameter. Manual measurement, please allow slight errors on size.