General description Brand new and high quality bicycle seatpost clamps designed for 7x9mm and 7x7mm seat rails. Made of high-quality metal, these clamps are practical and durable for various biking needs. Technical specifications Size: 7 x 9mm Material: Metal Color: Black Measurement allowed error: +/- 1-3 cm Package contents 2 x Seat Post Clamp Other information Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product.