How to use it?1. A simple 5 minute work out 2-3days a week can make a big difference in slimming down your face.2. Over doing it can cause discomfort so don't push to hard, 3-5 minuets is all you need for this exercise!Description:1. High quality: 100% brand new high quality, made of high quality soft silicone, safe and healthy, to ensure your oral...