Door Jammer Series - Pulley SystemA favorite variant of the popular Door Jammer series: Works just like the standard Door Jammer series, but is combined with the Spud, Inc. home pulley system to allow the user to convert any door into a cable exercise set up. Utilizes (4) different 12" short bands to create multiple resistance levels Simply wrap the strap around, Velcro to front strap and create a double loop system Can be used on 83" commercial doors or 80" or less regular home doors
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