Smart Digital Counter & Calorie TrackingTrack your workout time, reps, and calories burned with the built-in display. This waist twister machine helps maximize calorie burning and lets you monitor progress accurately for efficient weight management. Sturdy 300-lb Capacity for All UsersDesigned with a strong steel frame and stable base, our ab twister board supports up to 300 lbs securely. It offers a dependable body sculpting experience suitable for various ages and fitness levels.