The moisture meter can quickly measure the moisture content of the grain. 1. Thermoplastic silicone: Environmentally friendly silicone material, non-toxic and hygienic, durable and longer service life. 2. Comfortable fit: flexibly adjust the shape of the mouthpiece to the shape of the tooth to fit the ust. 3. Thermoplastic type: The diving mouthpiece can be changed, it will be more comfortable and can effectively relieve the feeling of discomfort in the mouth. 4. Scope of application: Commonly used for all kinds of breathing hoses and second stage automatic machines, women and children can trim them according to their actual conditions. 5. Moldable shape: after soaking in boiling water below 80 for less than 10 seconds, it can be changed according to the shape of the teeth, which can solve the oral discomfort caused by prolonged diving, so you can enjoy a more comfortable dive. Specification: Item Type: Snorkeling Mouthpiece Material: thermoplastic silicone Weight: approx. 50g/1.8 oz Size: Length: Approx. 10 cm/3,9 inch List of packages: 1 x Mouthpiece 1 x Cable Tie Note: Too high ambient temperature or direct sunlight will cause the mouthpiece to age. Store it in a ventilated, cool and dry place. Step 1: Insert the mouthpiece into the ust for a test bite (note up) and observe if the mouthpiece is not too long and if it touches the bottom of the gums. If it is too long, the length of the mouthpiece can be cut accordingly. Be careful not to reduce every pruning. If you lose too much, the most appropriate length is simply to align with your gums when the mouthpiece is bitten. Step 2: Place the mouthpiece in hot water below 80C and soak within 10 seconds, taking care not to remove the mouthpiece holder. Step 3: Remove the mouthpiece to cool for 6-15 seconds, place the mouthpiece in your mouth and gently bite it with your teeth, press the lower part of the mouthpiece with your tongue and hold your beard with your hands to immobilize. Step 4: After the setting is complete, after the mouthpiece has cooled completely, remove all mounting brackets. Remember that if you want to repeat these steps, you should wait for the mouthpiece to cool down. . Thermoplastic silicone mouthpiece Please be aware: . Thermoplastic silicone mouthpiece