This Dryer Telescoping Vent Periscope is designed to use in small laundry spaces with 2-1/2" wall clearance. It features one male snap-lock fitting and one extra long draw-band collar for easy installation. The beveled ends of the item prevent interference with or damage to floors and wall. This accessory is compatible with several brands; check to see if your model number is compatible. Installing this accessory will require basic hand tools and novice repair experience. You must unplug the dryer or shut off the house circuit breaker for the appliance before installing this part.