Lightweight and easily stored rowing "machine." Not high-tech. Good for people trying to get in shape or maintain shape rather than for someone who is looking for a huge challenge. There are 5 resistance levels, and rather than sliding parallel to the ground, the bench raises as you row. Used very infrequently: I have knee problems and found that using this inflamed those issues, so if you have any kind of knee problem I highly recommend you give this ad a pass. One person can carry this machine. Available anytime during day/evening.