A simple yet impactful design. This three-dimensional design combines two colors of silicone. It's resistant to water and sweat and easy to put on, so you can use it in any situation, from everyday life to sports. Phiten's unique technology, which uses micro-titanium all around the inside of the bracelet, supports relaxation and performance from your wrist. - Model: RAKUWA DUO TYPE - Size: Inner circumference 17cm - Color: White/Black - Features: Uses titanium Thank you for viewing. Immediate purchase is OK.