Colorful Fitbit Alta HR replacement band exterior + light type + soft + ventilation: High quality silicone material for a good but delicate touch. Fully FITBIT removable and easy to put in the fit. You can choose the number of colors. KUTOP products are developed by our senior expert team and designed in Japan. The design of the product quality and appearance will provide you the best shopping experience while the highest quality standards are the most important thing we are always guaranteed. If you have any product or service to any questions, please feel free to contact KUTOP or email us. We work with everything.