The elastic design of the elbow conforms to ergonomic factors, providing buffering and pressure relief from both the upper and lower sides. Product size (length * width): approx. 18 * 19.5 cm/7.08 * 7.67 inches. It reduces friction between the hips and the seat cushion, ensuring a comfortable experience for the rider. Main product features include offering more free space, allowing the lower body to relax without burden, which promotes better health. It provides enhanced shock absorption during pedaling, making riding less laborious. Suitable for both long-distance and short-distance riding. Product Specification: Material: PVC+PP+Steel Color: as shown in the picture Size (length * width): approx. 18 * 19.5 cm/7.08 * 7.67 inches Weight: approx. 410 grams Package includes: 1 * Bicycle seat.