Color: Green Includes mouthpiece case Includes mouthpiece creation instructions It fits snugly and doesn't come off, It's not stuffy, and the thickness isn't bothersome; it's just the right mouthpiece! To make it, put it in boiling water for about 10 to 15 seconds. Once it becomes slightly stretchy and soft, put it on your teeth, adjust it, and lightly bite down to fit. It's easy to make! If it doesn't fit the first time, you can repeat the process three or four times to get a perfect fit! As a special bonus for a limited time, we're including mouthpiece creation instructions for beginners, and Furthermore! We're also including a plastic case, which we normally sell for 600 yen, as part of the set! Choose from: Blue Green Pink Yellow White Purple Dark Blue Black Red Skeleton Case If you don't specify a mouthpiece case color at the time of purchase, we will ship the skeleton case. We will contact you if the case is out of stock and ask you to change your selection! Suitable for everyone from beginners to advanced users and can be used for various sports! When the bite is aligned, physical ability and strength increase, and improved sports performance can be expected! Keywords: Mouthpiece Mouthguard Sports Martial Arts Mixed Martial Arts MMA UFC Bellator ONEFC RIZIN Pancrase Deep Shooto Judo Wrestling Boxing Kickboxing Rugby Jujutsu Weight Training Weight Basketball Plastic Case Mouthpiece Case Mouthguard Mouthpiece