StealthFlow, Low Profile Downspout Extension Kit, Helps Divert Damaging Rainwater Away From Your Home & Your Foundation, Low Profile Design Of The Extension Is Designed For An Unobtrusive Look & Can Be Covered With Mulch, Straw Or Stones For A Subtle Appearance, No Digging Required, Designed To Work With Both 2" x 3" 4" Downspout With A Simple Cut Line To Fit The Larger Downspout Application.