1. ONE SIZE FITS ALL: Use our adjustable silicone shaping wand to fit 99% of all people. Even if your teeth are chipped or crooked This means it fits any mouth size, no matter what your mouth shape is. ^ 2. High-quality material: Made of high-quality brass metal, not easy to fade. Using high quality brass as the base metal makes our grill durable and unbreakable. ^ 3. Don't worry if it doesn't fit perfectly the first time Each purchase comes with resizable silicone strips and instructions on how to install them in the comfort of your own home Guaranteed easy fit If you don't get the perfect fit the first time, our silicone sticks will help you reshape ^ 4. NICKEL-FREE GRILL SET: Our premium grill set contains absolutely nickel-free top and bottom grills. Each grill is individually packaged with a hard case for storage, instructions, and easy-to-shape silicone molding strips. ^