The lifting effect at the front offers more control and precision making it good for jumping. The Waterford mouth should be worn 1/4" - 1/2" wider than standard to work effectively. Brass alloy assists with salivation. Mouthpiece thickness: 10.5mm. Cheek height: 135mm. Brass alloy mouth: Copper is alloyed with a harder metal to produce warm, durable mouthpieces which aid salivation. Stainless steel is used for the cheeks due to it being durable, easy to clean and resistance to rust.