Product Package content: 1 pcs exhaust grille1.Size: Top Diameter: 145mm, Bottom Diameter: 95mm, Thickness: 45mm.2.Resistance: The lamella-shaped grille is made of steel. The kitchen grill is doing very well. It can withstand external factors such as snow, rain, frost, and sunlight. It is covered with a protective film. It is suitable for chimneys and facades as protection for ventilation systems. It is used to protect the fireplace and the front facade. The product is round and silvery.3.Universality: The air vent with hose connection is suitable for indoor and outdoor use. It consists of an entrance that protects from precipitation. Weather protection. The product has been designed for use in various buildings. Our ventilated ventilation grid ventilates many spaces very well: kitchens, toilets, bathrooms.4.Robust: The weatherproof grid is made of stainless steel and is therefore particularly resistant. The ventilation grill is designed to be ultra-flat. The outer grid has fixed slats to prevent rainwater from entering.5.Design: The ventilation grille, practical, can be installed at random, all kinds of furniture, can be used anywhere, in offices, conference halls, auditoriums, concert halls and other places.