Description Our greenhouse ventilation pulleys are for any type of greenhouse, from small home greenhouses to large commercial operations. They are easy to operate and install, making them the choice for both experienced gardeners and those new to greenhouse gardening. Features -Color:Red -Material:Iron and plastic -Size:10.00X4.60X1.80cm/3.93X1.81X0.71in -Reliable operation:The reliable operation of our pulleys ensures constant airflow within the greenhouse, promoting a healthy growing environment for plants - Fine details: The workmanship is fine, the materials are excellent, and it can be used repeatedly for a long time -Long-lasting performance:Our pulleys are made with stable materials for a durable and long-lasting performance -Load-bearing capacity: The thickened design of our pulleys and their improved load-bearing capacity ensure a stable operation -Easy to install: Our pulleys are easy to install and operate, making them suitable for greenhouse beginners and experts alikePackage list: 8 x Pulleys