TRYMAG Magnetic Floor Vent Covers 5.5"x12", 8 Pack Strong Floor Vent Covers for Home Floor Standard Air Registers?Air Vent Covers for Wall, Air Register, Ceiling Vents?RV, Home HVAC and AC Vents

NOT FOR PLASTIC VENTS - please make sure your vents are METAL. Practical Design: Our register cover is cuttable. Simply use scissors and trim the magnetic vent cover to fit the vent if needed. Use air vent cover everywhere - at home in the kitchen, living room, bedroom, in the office, school, classroom, garage, RV and so on Easy Installation Simply insert these air duct filters into floor air vent registers or ceiling vent, fit to most standard 5.5 x 12 inch size vents. Recommended using vent filters in selected rooms to avoid too much stress on AC and heating system A Magnetic Vent Cover that Actually Works! It completely prevents hot or cold airflow in specific rooms. No more freezing rooms with really cold air blowing at you while sleeping and no more hot rooms that feel like a sauna. In addition, it will also help with annoying noises (like loud music) or unwanted smells (like smoking or cooking) from neighbors in apartment buildings. Specification: Brand: TRYMAG Color: Black Size: 5.5x12inch Perfect Pack for Clean Air - Comes with 8 Pack air vent filters 5.5x12 inches filter with 1mm thickness. Please Note:Our magnetic vent covers is not compatible with plastic or aluminum ventilation outlets. Customer Service: We are committed to providing excellent products and services to our customers. If you feel unsatisfied Please contact us freely.