Instructions: 1. Place the white silica gel in the teeth socket. 2. Soak the tooth and silica gel in hot water at 70-80 degrees for about 15-30 seconds to make the silica gel foam soft. - (be careful not to use boiling water, otherwise the silicone will bubble up and become unusable) 3. Put the tooth into your mouth and gently bite with the upper and lower teeth. Adjust as necessary for the fit and look you desire. The fixing bar should take approximately 15-20 seconds to harden. 4. If the styling effect is not good, repeat the styling until satisfactory. 5. After each use, rinse with clean water and dry in the sun. Size Chart: Size: Top Grills: 5.2x1.4 cm/2.05x0.55 inch; Bottom Grills: 4.4x1.4 cm/1.73x0.55 inch. Package Includes: You'll get: 1 Set Top & Bottom Grills. 1 Pair Silicone Molding Bars. 1 Pair Storage Boxes. 1 Piece Tweezers. 1 Piece English Instruction.