material: The swimming ear bands is made of elastic neoprene, which are, safe and non-toxic, which can effectively prevent water from entering your ears. Size: The right fit is important; snug but not too tight is the goal. M: fit most 1-9 years old kids; L: fit most over 10 years kids or adults. Adjustable Hook and Loop Closure: Ear protection headband provides extra grip, can adjust the size of the headband according to your head circumference and avoid falling off the head, and is soft and comfortable to wear. Application: Swim ear band helps prevent ruptured eardrums from falls in water while swimming, canoeing, surfing, kayaking, water skiing, wakeboarding or doing any other fun water activity. Ear protection from water: This swimming headband adds an extra layer of protection to your ears when swimming, which helps to fix the earplugs in the right place, prevent water from entering your ears., Weight: 0.08598028218 Pounds, Manufacturer: Elyebxj_E94_5202745