The Precor 546i Experience Series is innovative cardio equipment featuring heavy duty commercial grade construction and components for extra durability. Most certainly the industry leader in this category, this elliptical is hard to beat. The ramp can be set between 15 and 40 degrees throughout the workout to isolate and cross train quadriceps, gluteus, hamstrings, and calves, a feature you will only find on a Precor elliptical. Six buttons control 10 preset programs including one fitness test and a new program can be selected at any time during their workout. The large buttons unique to the Precor 546i Experience Series provide satisfying tactile response and audible click. Beginners and experts alike easily get on and go with this intuitive control. The intuitive display has an option of a fully integrated Cardio Theatre, this 546i is designed to take up minimal floor space while providing exceptional stability-even during vigorous workouts.