Features: Our elbow vent tube connector is a breeze to install. Simply wipe it clean before use, butt it with the hose, and fix it using aluminum foil tape. An easily adjustable dryer accessory, you can fine tune it using a pipe crimper. Once installed, complete your set up by placing the clamp and tightening the screws. The internal construction of the dryer vent elbow connector is smooth and designed with a reasonable curvature, greatly reducing wind resistance. This promotes efficient air circulation within your dryer system and optimizes performance. Invest in this vent tube for a seamless, high speed drying experience. Specifications: Material: galvanized sheet Color: silver Upper hole diameter: about 4.1 inches/ 10.4 cm Lower hole diameter: about 3.9 inches/ 9.9 cm Length: about 7 inches/ 17.8 cm Package includes: 2 x Dryer close elbow vent tube connector Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays.