GranVela Comfortable Light Weight Mountain Bike Road Bicycle Cycling Hollow Out Spider Saddle Seat Cushion Great durability and strength ensured by high-toughness engineering plastic. 69 ventilation holes on the surface for improved airflow. Ultra light weight, ventilate and shock absorption provide you better comfort for cycling. The design of spider web is good to blood circulation for more healthy riding. Item weight: 184g. Size: 11in * 4.9in * 3.40in