Amerimax Home Products 636025 Lock-in Gutter Guard, Black Compatible with 4", 5", and 6" metal (steel or aluminum) K-style gutters The tight expanded metal mesh pattern keeps out most debris, to keep your gutters flowing freely. Constructed of durable powder-coated steel for long life and protection from the elements, and neutral color blends seamlessly with roofline Easy "lock-in" installation, simply slide under the first row of shingles and lock the gutter guard to the front lip of the gutter Includes 10-year limited warranty Made in the USA