Features:1.the devices are safeeasy to use and made of high quality medical soft silicone,they are suitable for longtime use.2.the anti snoring devices has a unique design that prevents snoring.it maximizes airflow in the nasal cavity.let people around you make a sweet dream.3.the snoring relief helps reducing snoring,nasal congestion,heavy breathing and other breathe risks,enjoy good sleep every night.4.we provide 4 sizes 2 different style reusable vents to suit any size nostril/nasal passage.5.the snoring aid was made of flexible silicone to make your sleep feels natural and sizes designed to the general shape of nostrils help lift the nasal passages to improve airflow,it is kind to your nose.Products from LUOLV's store