Our most popular screen accessory! New and improved wider wheel base! Takes the effort out of moving your screens on/off the field. Allows one person to easily transport a screen. Highly recommended for our larger screens! Extra HD steel construction with 10” pneumatic wheels for rolling on natural grass. Attaches with two clamps. Designed for OIP protective screens, but will fit any brand screen with up to 1⁵⁄₈" dia.