Crafted From High Density Pvc, the Peanut Massage Ball & Yoga Hedgehog Lifting Ball Combine Dual-lobe Peanut Shape with Acupressure Spikes. the One-piece Molding Process Ensures Durability & Eco Friendly Construction. These Muscle Fitness Fascia Exercise Balls Target Deep Tissue, Release Trigger Points, & Relieve Foot Pain. Ideal for Myofascial Release, Yoga, Travel, & Home Gym. the Ergonomic Design Mimics a Peanut for Spinal Safety, While Hedgehog Texture Boosts Blood Circulation & Stress Relief. Portable Size, Easy to Clean, Food Grade Material Safe for Skin. Use for Plantar Fasciitis, Back Knots, & Active Recovery. No Cracking, No Fading. Perfect for Massage, Lifting, & Daily Muscle Fitness.