Size :11mm, 16mm High quality and durable material: The greenhouse clip is made of plastic, strong structure, anti-aging, durable, strong, strong fixing function, not easy to break, can be used indoors and outdoors, can be used for a long time with confidence. Green Film Row Tunnel Clamp: Greenhouse Film Clamp has a threaded design. The non-slip threads help when pushing and won't slip while pushing. Garden pole clamps are perfect for your garden. You can adjust the position of the clips as needed. Green greenhouse clips are a must-have tool for a greenhouse. . . Anti-slip strips and stable grip: Greenhouse clips hold the film very stably, even in bad weather. The film does not hang in strong winds, which can well fix the greenhouse film, protect the plant seedlings from damage, and bring a bumper harvest for the coming year. . Versatile Applications: These Greenhouse Film Row Cover Net Tunnel Clips are used to secure tarpaulins, parasols, greenhouse films or nets to pipes. It is also very suitable for building greenhouses, floors or other places and is very convenient in our daily life.