Durable, easy to see markers. Made of PVC, domes will not break when struck. Use indoors or outdoors. Set includes 40 domes (10 of each color) and stacking carry handle. Agility Markers Create infinite training patterns to develop overall agility and balance. Use agility markers for multiple cut drills where athletes need to get low to the ground and touch the marker. Multiple colors provide high visibility and cues for change of direction.