Quiet indoor ski training machine that quickly attaches to most doorway framing. The Inski Indoor Ski Trainer allows for consistent ski training in the comfort of your own home for summer and poor weather days. It is affordable and compact to not take up tons of space in your home. The trainer can has manually adjustable resistance via magnetic resistor. Doubles as a doorway pull-up bar. Will work on a door frame that is between 24 in - 32 in (61 cm - 81 cm) wide and 4.5 in - 6.5 in (12 cm - 16 cm) deep.