The Killerspin 402-14 2.3 Millimeter Nitrx-4z Table Tennis Rubber, 43 Degree Throw, Black gives you the advantage of heavy spin on serves, while being more forgiving when receiving shots with spin. High control is offered for blocks and counters. The Killerspin 402-14 2.3 Millimeter Nitrx-4z Table Tennis Rubber, 43 Degree Throw, Black is suited for a power driving offense, and works well in a third-ball attack game and is ITTF approved. The product comes with a 30-day limited warranty. Table tennis is a sport that can be enjoyed by individuals of any age and physical ability. Playing table tennis is a great way to stimulate the brain and promote quick thinking while improving hand eye coordination. Killerspin was built to bring youth and innovation to one of the world"s most beautiful sports, and to serve the table tennis player. The Chicago-based firm produces premium-quality table tennis equipment, sports apparel and media.