The pro form 900 zle elliptical is a cross trainer with many features that allow you to train at your own pace and include features to make sure the equipment is easily portable and simple to set up the crosstrainer includes 18 levels of resistance that can be changed allowing you to work at your own pace to help portability and set up they feature a snap set up allowing you to set your cross trainer up in minutes using a few basic steps key features of the pro form 900 zle elliptical 10kg f