Ivation Ab Wheel Carver Roller - Pro Abdominal Exercise Wheel - Fitness Smooth Workout for Abs Ergonomically Designed Rolling Wheel Strengthens & Tones Abs, Obliques & Core Dual Wheel Build Ensures Increased Stability for Smooth, Wobble-Free Movement Simple-to-Use Home Gym Accessory is Ideal for Everyone Beginner to Advanced Durable Molded Construction w/High-Quality, Rugged, Sweat-Resistant Materials Advanced Coil-Free Design Delivers Intense Full-Body Workout in Just a Few Reps