These lightweight cones are made from weather-resistant rigid plastic and come either numbered or unnumbered. Each numbered set contains twenty cones and is numbered 1 through 20 with 3"H weather-resistant vinyl numbers. Each cone stands approx. 9"H and the full set of 20 weighs less than 4 lbs. The cones also have holes in each base, which allows them to be anchored in windy conditions.