The Adult-sized Zone Replacement PVS Putty in Electric Pink can be used to replace old putty in your Zone Mouthguard without having to buy a brand-new mouthpiece. Zone uses a patented, zero-pain technology to make mouthguards. The result? The old-school method of boiling plastic a thing of the past. Traditionally, athletes would make multiple visits to the dentist office and spend hundreds of dollars for custom-fitted mouth protection. Zone figured out a way to keep you on the field and out of the dentist chair while offering professional-level collision and concussion protection and a customized fit at a fraction of the price. It has also been proved that the Zone Mouthguard can help increase performance by properly aligning the jaw posture, increasing muscular strength for all athletes. Created with MORA (Mandibular Orthopedic Repositioning Appliance) Technology for better balance, flexibility, and more air intake, scientific studies have shown there's a real relationship between increased athletic performance and MORA. The Zone Mouthguards bring that scientific technology to athletes everywhere, naturally aligning your jaw to protect against impact and improve your athletic performance.