YESIDO C331 Durable Materials: Constructed from high-quality PC+ABS for enhanced durability and reliability Wide Compatibility: Accommodates smartphones of various sizes, specifically those between 4.7 and 6.9 inches Versatile Fit: Designed to fit bicycle handlebars with a diameter range of 20 to 34cm, ensuring broad compatibility One-Hand Operation: Features a one-button release mechanism for easy, single-handed operation. The triangular design provides stable support, keeping your phone secure even on rough rides Protective Sunshade: Equipped with a sunshade cover to shield your phone from sunlight and light rain, enhancing visibility and usability