What is the difference between the handle vs the step model? If I go with the step model how is the drawer opened?
The step provides a larger area/step up for kitties to enter and exit the unit. This would be better for older/smaller kitties or those with disabilities to help them. The handle does not come out as far so it'd be better for kitties who are agile and able to jump in and out of the unit easier. The step model still has a handle underneath where you can place your hand to pull the drawer the out though. These parts are interchangeable so if you purchase the handle and decide you want the step, you can purchase the step separately then change it out instead.