Upgrade your dryer's ventilation system with these high-quality Ideal Tridon Turn-Key Clamps. Designed to fit dryer vents with a diameter of 2-1/2" to 4-1/2", these stainless steel clamps come in a pack of 2 and are easy to install. The turn-key mechanism ensures a secure and tight fit, providing peace of mind and preventing any risk of dryer vent leaks. These clamps are perfect for anyone looking to upgrade their dryer vent system and ensure optimal performance.