Material: silicone, free fba size: 2×1.4×0.5 the set of delivery includes: 4x mini nasal clamp, 4x protective case. magnetic nose clip is a simple and effective way to prevent or eliminate snoring and to enjoy endless nights of peaceful sleep. designed specially to prevent snoring, maximizing the airflow by widening nostrils. it's a lot more productive than just using a single device. easy to use, you can use it many times. it fits to any shape of nostrils. enjoy a good snore-free night's sleep! remove snore, apply conveniently into nostrils. breathing is getting quieter and easier. it helps rest the tongue at normal position, thus opening up the nasal cavity while breathing during sleep. when you sleep the mouth and throat muscles relax. due to these clips nasal cavity is open, making breathing more simple, eliminate nasal obstruction, making better airflow. snoring causes problems with respiratory and circulatory systems, hypoxia. the clips also prevent upper respiratory contagion. the problem is solved without any surgeries. it can also be a great present for a partner or a friend. the snorestopper is non-toxic and has no taste. features: color: transparent type: u type size: 2 pc material: ps+pvc+silicone+magnet lightweight easy to use harmless reusable applicable to every shape of nostrils safe convenient made of silicone. important: 1. you should wash it every day after using with soap water and air dry. 2. please use it a few times to adapt. set includes: 4x magnetic nose clip 1x user manuai 1x after-sale service card