The LT-800 Inflatable Dent Remover, from Lock Technology, uses hand pumped air pressure to push dents out from the inside of door and fender panels. Available in two sizes: The LT-805 (8" by 8" Square Inflatable Dent Remover) is for removing dents in tight corners or along welded seams and panel edges. The LT-810 (14" by 8" Oblong Inflatable Dent Remover) is for longer more accessible large dents. Each bag has 5' of air hose with an oversized hand pump bulb for long reach.