Adjustable Air Ventilation Cover, Round Ducting Ceiling Wall Hole, Abs Vent. Features: Wall Ceiling Diffuser Made of High-quality ABS Material, Environmental-friendly, Safe, Sturdy and Durable to Use Air Flow Round Ventilation Ducting Hose Covers Can Be Perfectly Used for Indoor Exhausting, Lower Noise, and It Also Could Be Used As a Role of Decorating. Simple Design, Fashionable Appearance, Fine Workmanship and Excellent Quality, Perfect for Using in Your Home Round Ceiling Diffuser Very Easy to Install with the Installed Casing, and the Cover Could Be Adjusted According to Your Demand, Flexible and Convenient Easy Air Flow Diffuser Can Be Perfectly Installed on the Ceiling or Wall, Also Very Easy to Disassemble for Conveniently Cleaning Round Air Vent 4 Sizes Are Available, Diameter 75mm/100mm/125mm/150mm, You Could Choose the Most Suitable One According to Your Demand Specifications: Color: Black + White Material: ABS Size: 75MM (3") 100MM (4") 125MM (5") 150MM (6") Package Contents:1x Adjustable Air Vent . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.