Flood Prevention---Enjoy cleaner lawns and courtyards, this economical downspout extension sleeve helps prevent flooding, erosion and expensive maintenance. Telescopic---This rain gutter extension pipe can be telescoped, and the length can be adjusted according to the needs, which is convenient to use. The gutter downpipe extension can easily extend from 20in to 59in to divert unwanted rainwater from your ground when connected to the downpipe. Quick Installation---This DIY friendly extension does not require cutting or trimming, and a removable adapter allows you to quickly and easily connect it to an existing downpipe. Good Elasticity---Our downspout extension slot connector is thicker than other connectors, more durable, less prone to deformation, good elasticity, and less prone to cracking. Excellent Performances---It has excellent performances of flexibility, easy to bend, and easy to to its original shape with no creases or cracks. It is antifreeze explosion proof and can be used in bad weather, such as snowing, sun exposure, etc.