Blue plastic ski training aid for children. It prevents the tips of the skis from overlapping or separating, allowing young children to ski stably. I was recommended to use it by the coach when my child took a lesson for their first ski experience, and I used it a few times during one season. To reduce shipping costs, I will ship it with the screw parts removed. I am also selling a kids' harness. If you purchase it together, I will discount the shipping cost. Thank you for looking.