• Cross-country upright skier
• 6-Function computer with programmable target pulse feature
• 5-Position adjustable incline system
• Gold anodized aluminum tracks measure 51 in long
• All steel frame construction
• Molded console with upper body tension system
• 10-Position adjustable abdominal pad
• Orthopedic rubber monorail footpads
• Flexible ribbed handgrips
• Quiet, smooth pulley-belt drive system
• 10-Position nylon belt adjustment
• Foam padded safety handlebar
• Total Body Workout
• Tones and firms both sides of legs and arms
• Folds flat for easy storage
• Heart rate programmable target zones

For a CSA Alpine Tracker---same idea, but more adjustable, and the foot holds move on the track, rather than the entire track moving. I have never fallen, never even lost my balance.
With the CSA, I can either do the whole cross country ski gig, or just do the leg part, while resting my arms on the belly pad.
It also comes with the calorie counter, pulse monitor, distance counter, etc.
In my opinion, its a much nicer machine, and much safer. Also a bit cheaper than the NordicTrack skiers.

MSRP $399.99