I've had these two sets of boot warmer machines in my closet and I need to get rid of them ASAP the white one is a bit taller maybe made for long boots it works fine but you cannot adjust the fan or the Heat the black one though folds down very compact it's very nice and you can adjust the fan and Heat both have never been used just tested you can buy both or just one of them all sell the white one for $3 and the black one for five or best offer any questions please ask