TOURNAMENT QUALITY: The premium JOOLA Spring Net has passed professional testing requirements and is approved and authorized by the International Table Tennis Federation (ITTF) for the use in competion, including the Olympics and World Championships. EXCEPTIONAL MATERIAL AND DESIGN: Includes two sturdy, heavy-duty metal posts with a quick and easy setup clamp system for attaching the bracket to the table. The net is specially designed with a double woven cotton-steel thread to last for years. QUICK & EASY ASSEMBLY: This durable ping pong net & post set is 72" long and the posts fit on tables up to 1.5" thick. Once the net is attached to the table, use the ball and chain at both ends of the net so net is at the corrrect tension. CONSISTENT PLAY: Standard height of the net should not exceed 6" tall. Built into the design is a height adjuster knob to ensure professional ping pong standards are met. To help maintain the net to the proper specs, a BONUS Height Adjuster is included. PROTECT YOUR TABLE: Includes rubber padding within the post clamps to protect the ping pong table top and insure a tight fit when attached.