Are you looking for cones with a unique design to assist in your training drills and sessions? GSI S-slit marker cones are exactly what you are looking for. Here's everything you need to know about them. Smooth and Hassle-free training sessions: Your training sessions can feel like a mess if the cones are knocking down around you in the windy conditions. The slit design of these cones is hollow which allows wind to pass through. What's more, they come with four holes at the base so that you can pin them down and have a smooth session without any hiccups! A perfect match for your creativity: These Slit soccer cones are 9 inches high. They come in two High-Visibility colors of yellow and blue. So both in terms of height and colors, these cones serve as excellent field markers. If you want to experiment with different tactics and pathways, then GSI slit cones are a perfect match for your creativity. Versatile Application: These cones can fit into any of your training drills. They can also be a great gift for your kids playing flag football in their backyard or doing tennis drills.