Homeowners, these PATIKIL chimney hole caps are such a simple but effective solution for sealing off unused pipes and vents! This 2-pack gives you plenty for multiple applications around your house. Each cap is made from thickened stainless steel that's corrosion-resistant and built to last through all kinds of weather conditions. They're designed to fit 6-inch diameter holes (150mm), with an outer diameter of 7.1 inches (180mm) and height of 1.7 inches (44mm). The adjustable slip-resistant clamp ensures a secure fit that won't accidentally come loose or move around. Installation couldn't be easier - just push the cap into the pipe and adjust the clip for a tight, custom fit. The smooth, burr-free surface is easy to clean and maintain, and the curled edge design prevents any sharp edges that could hurt your hands. These are perfect for sealing chimney pipes, vent holes, drain pipes, fireplace and wood stove pipes, or any other openings in bathrooms, balconies, kitchens, or rooftops. They effectively block unpleasant odors, drafts, and keep pests from entering through unused openings. The silver tone looks clean and professional, blending well with most pipe materials. Whether you're closing off an old vent, sealing a temporary opening, or just want to cover unused pipes for safety and cleanliness, these caps provide that perfect combination of durability, easy installation, and effective sealing. They're one of those simple home maintenance items that just make sense to have on hand!