Description: 1.Quantity: 1Pack (4PCS) 2.Material: Silicone 3.Color: Clear 4.Function:Anti snoring Common causes of snoring: 1.Supine body position (lying face up). 2.Large tonsils, long soft palate or uvula. 3.A tongue that relaxes too much during sleep. 4.Being overweight. 5.Nasal congestion from colds, allergies or deformities of cartilage within the noseMenopause. 6.Consuming alcohol, medication or tobacco products within six hours of going to sleep. How it work? The device inside the nose clip help open the nasal passage which helps prevent snoring! When you sleep the mouth and throat muscles relax. Sometime the tongye drops and the vibration of the uvula during the breathing cycle translates to snoring. Shipping Package Include: 1 Set=4 Pcs Silicone Anti Snore Note: Size:2 small and 2 big