Package of 1 - 2 3/8 inch Aluminum Gutter Round Drain Outlet Package of 1 - 2 3/8 inch Gutter Round Drain Outlet made of Strong Heavy-Duty Gauge Mill finished Aluminum (not like the material sold online and large box stores) made to be cut with an 2 3/8 inch hole saw into, for fast installation into existing gutters to insure a snug fit to drain rain water fast into downspouts, to be used with 5 - Inch Gutters Should be sealed with GEOCEL CONSTRUCTION TRIPOLYMER GUTTER AND NARROW SEAM SEALANT made for the use of aluminum rain gutters. Best not to use with just any brand silicone sealants, as they don?t hold up as well. (you can find this in our other seamless gutter related listings) A High-Quality Product Made in the USA Mill finish Aluminum, for low maintenance