Extra large & excellent comfort: The size of the seat is 12 * 14 * 4.7inch, 2.36inch wing-shaped high-elastic foam provides soft support, which can fully meet your comfort needs for wide seats Perfect Shock Absorption Performance: Powerful shock absorption function, make the ride smooth, can more effectively absorb the impact of bumps, potholes or any rough terrain, without creaking Ergonomic, "Wing" design: The raised wing surface design on both sides perfectly fits the shape of the human buttocks, disperses pressure, and avoids damage to the buttocks and tailbone caused by long-term riding Waterproof, Durable Leather Surface - High tenacity PU leather, soft and comfortable to the touch, wear-resistant, scratch-resistant, non-slip dots on the surface effectively increase friction Universal Fit - It can be mounted on any standard bike Seatpost, such as a clamp ring Seatpost or dual rail Seatpost. Suitable for city bike, mountain bike, beach cruiser, exercise bike, or ebike bike etc CUSTOMER SUPPORT - We are committed to providing you with the best quality riding experience. Try it. If it does not improve your riding comfort, please feel free to contact us and we will refund you