This Dryer Exhaust Periscope Kit Is A 0 - 5 Vent Periscope For Use With A Tight 2-1/2 Clearance. This Kit Contains One Male Fitting And One Extra-Long Draw Band Collar. Excess Length Can Be Trimmed To Fit. This Accessory Is Compatible With Several Brands; Check To See If Your Model Number Is Compatible. Installing This Accessory Will Require Basic Hand Tools. Some Disassembly Of The Dryer And Novice Repair Experience. Remember To Unplug The Dryer Or Shut Off The House Circuit Breaker For The Appliance Before Installing This Part.