These cones can be used for the following things:

Mark off areas for safety including construction areas
Create a fun slalom for bikes and ride-on-cars
As a decoration for construction themed parties
Sports training and agility courses, such as skating, soccer, outdoor activities
Help dressage riders learn to be precise as they ride figures
For backyard, schools, units, organizations large events, residential parking
Dog training
Features:

Perfectly sized: 7.5" height x 4.3" square base
Set of 12 cones
Thick and durable material
Lightweight, stack on top of each for easy storage and transportation
Designed for use on any surface - grass, gym floors, cement, artificial turf and more
4 holes on base for attachment to ground