●Type:Luxury Modification Kit Set ●Size :Only Fit For Apple watch 45mm 44mm ●Rubber strap made of fluororubber has fine hand feeling, no allergy, no skin injury, heat resistance, oxidation resistance, oil resistance and corrosion resistance. ●Exquisite craftsmanship and Stylish design;More comfortable,Simple, and stylish,Feels more comfortable than traditional ones ●only sell the Carbon Fiber Modification Kit Set, not included watch