Features: brand new and high quality Adjustable: you can change the airflow by rotating the on-off button on the panel. Premium material: made of high quality ABS, environment friendly and non-toxic. Easy to install: available for wall mounted or ceiling mounted. Detachable the white panel can be dismantled, very convenient to clean and maintain daily. Stylish, compact and solid, this air vent can use as air inlet or outlet, for ideal for bathroom, kitchen, office ventilation. There are 8 types accrding to diameter, flow direction and density. Specifications: Material: Plastic Size: 3/5 Inches Package Includes: 1x Air Ventilation Cover note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.