Its robust Aluminum and steel frame construction and easy operating mechanisms, allow intuitive use and easy adjustment. The KayakPro SUP Ergometer replicates SUP paddling precisely. Sure, it may be nice to be on the water all the time but, due to limitations of time, cold and inclement weather, limited daylight hours and other factors this is not always possible. However the good news is that the KayakPro SUP ergometer can actually promote a better SUP specific fitness and strength workout than on the water! Leaving you one step ahead of the competition!