Durable and colorful, these flat hoops can be used by themselves or as step-thrus, targets, markers, etc, or as add-ons for our hoop and hurdle cones or giant multi-bricks...Available in three sizes...Sold in sets of 4 or 12. Set of 4 = (1 each - blue, yellow, green and red) Dozen = (3 each blue, yellow, green, red).