Ab Roller Wheel, Arespark Home Gym Equipment for Core Workout, No Noise Ab Roller Exercise Equipment with Knee Mat and Foam Handle for Abdominal Fitness Trainer, Abs Workout Equipment for Home Gym OfficeSUPERIOR QUALITY: The ab roller wheel is made of high quality plastic and stainless steel shaft for durability, safety and excellent load capacity, specifically designed for exercising the abdominal muscles. Features durable PVC and knee pad for safety and comfort EFFICIENT EXERCISE EQUIPMENT: Arespark ab roller wheel workout equipment can enhance muscle density, shape the abdomen, waist, back, shoulders, arms and core, effectively exercise muscles