VERY STURDY! 23 programs available with the Precor 9.35, of which 1 mile, 10K, 2 mile, 5K, 2 Custom programs, Fitness test, 2 Goal programs, 5 Heart rate programs, 4 Interval programs, Manual, Random, Track, Walk and Weight Loss. Features: Durable design for home use: Precor quality has been time tested in health facilities worldwide, providing solid construction that translates into long-lasting performance, quiet operation, and trouble free operation in your home. The Precor 9.35 Premium Series treadmill. Integrated Foot plant Technology: Innovative design adjusts belt speed to foot speed, fully complementing and supporting your natural running stride. Ground Effects Impact Control System: Unique suspension system cushions impact and stabilizes lateral movement, reducing impact on joints, increasing comfort, and minimizing fatigue. Easy-to-read, intuitive console: Access QuickStart, Programs, and User IDs with one touch of a button. Tap Control keypad is user-friendly with "quick key" functions. The 9.35 offers a unique workout log and a personal best tracker to keep you motivated during your workout. Heart Rate Monitoring: A combination of easy-to-use handgrip sensors and wireless heart rate telemetry allow you to monitor your heart rate during workouts. SmartRate displays your heart rate to keep you in your target zone for improved cardio-training and weight-loss results. Options menu offers greater choice: The options button allows you to customize your workouts by viewing additional metrics, entering weight and age, or selecting the goal you want to work toward. Safety features: For added assurance, the magnetic safety key and stop button will immediately turn off power when activated. Password protection ensures that the machine can be locked and unlocked at your discretion. 3.0 hp continuous-duty motor runs cool and quiet, providing substantial power and torque at all speeds. Steel crowned drive and take up roller keep belt centered to reduce maintenance and eliminate noise. Integrated fan on the flywheel aids cooling Multi-ply belt made of polyester satin weave with a non-slip PVC surface Phenolic laminate deck bonded to 1-inch medium density fiberboard; can be flipped to double life. Bio-feedback center with SmartRate provides dedicated feedback on heart rate and calories. Full-length arms Heart rate monitoring and compatibility with heart rate telemetry reading using an optional chest strap Diagnostics: Set weight, age, workout stats, interval speeds, and inclines for each user Accessory holder for water bottle, portable music, reading material and more Powder-coating process adds cosmetic topcoat and durability to frame QuickStart lets you begin workout with the push of a single button Specifications: Speed: 0.5 to 12 MPH Incline: 0 to 15 percent grade Decline: -2 percent Running surface: 22 x 56 inches Roller diameter: 2.5 inches Programs: 23 total, including 1-mile, 10k course, 2-mile, 5k course, 2 custom, fitness test, 2 goal, 5 heart rate, 4 interval, 1 manual, 1 random, 1 track, 1 walk, 1 weight loss Dimensions: 79 x 34 x 56 inches (L x W x H) Weight: 335 pounds