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Hello, welcome to our store Our products have high quality 100 and the best concern standards Product Name: Stretchable Silicone Yoga Mat Material: Silicone Tensile Strength: 10KG Product Function: Open toe, back design, adjust shape of hips and legs Effective Improvement: Poor posture and back pain Poor sitting posture, back pain Fat, thick legs, rounded shape Effect of choosing fitness: Building arms/losing arm fat Features: Even with tensile strength Not easy to break