This Pilates Ring (body Hoop) is Made From High-grade Flexible Plastic with a Spring-like Internal Structure, Wrapped in Soft Eva Foam Pads for Comfortable, Non-slip Handling. the Manufacturing Process Uses Precision Injection Molding to Create a Smooth, Burr-free Frame That Resists Cracking Under Repeated Bendy. Its Key Feature is Adjustable Resistance: Squeeze the Ring to Work Inner Thighs, Arms, Chest, & Glutes, or Push Outward for Core & Back Training. the Lightweight, Portable Design Suits Home Studios, Gyms, or Travel. Durable & Low-impact, It Aids Physical Therapy, Posture Correction, & Balance Drills. Sweat-proof Foam Cushions Prevent Slipping During Intense Sessions. Unlike Bulky Equipment, This Circle Weighs Under 0.5 Kg Yet Provides Up to 10 Kg of Force.