Heavy duty, sturdy. Get these not the slightly cheaper version without the springs. With kids stepping on them, messing with them, and wind, you need the durability. Perfect for marking soccer drills or corners. Windy conditions are no match for them. They do sway but never get taken down. Showing no signs of wear after several seasons of regular use. Can be awkward to carry around but well worth the trouble.
Rating: [5 of 5 Stars!]