Description Characteristics: · 100% natural latex · Perfect for crossfit, yoga & fitness classes · Textured surface for professional gym use · To develop the balance and coordination · Perfect for stretching and flexibility · To provide a total body workout · Perfect for weight training · Easily maintainable Specific: · Yellow:500mm * 50mm * 0.45mm / 19in * 2in * 0.018in · Blue:500mm * 50mm * 0.55mm / 19in * 2in * 0.021in · Red: 500mm * 50mm * 0.65mm / 19in * 2in * 0.025in · Gray:500mm * 50mm * 0.9mm / 19in * 2in * 0.035in Tensile strength: Yellow: light Blue: average Red: heavy Gray: extra heavy Package inclueded: Yellow +Blue + Red + Gray (4 level) 
