Durable and practical material for long lasting use on daily cycling. This seatpost clamp is built to withstand the rigors of regular riding and provide reliable performance. Designed for saddle rails 7x9mm and 7x10mm for a secure and precise connection. It prevents the saddle from slipping during rides, delivering a comfortable and stable seating experience. Compatibility with bicycles equipped with 7x9mm and 7x10mm saddle rails. This clamp fits a wide range of bike models and is a versatile accessory for various cycling needs. Easy installation with a straightforward installation process. No special tools required; simply tighten the screws to secure the clamp and you are ready to ride. Secure and stable grip. The 7x9mm and 7x10mm steel rails provide a tight and stable connection between the seatpost and saddle rails, enhancing overall stability and safety. Use scenarios: Road commuting and daily rides where saddle movement would cause discomfort or distraction. Mountain biking on rough terrain where a secure saddle position is essential for control and comfort. Bike touring or long rides with heavier loads, where reliable saddle security is important for comfort and reliability.