Features: Designed for Pro Swimmers Made of PVC-Free Silicone - moulds to the individual's ear shape Hollow Stems - so you can hear better while swimming Supplied as a pair in a handy plastic carry case Available in a choice of 3 colours Swim better with the Arena Ear Plug Pro. With zero water infiltration these earplugs are created for pro swimmers. This unique three-ring form design effectively stops water from entering your ears with the largest ring preventing the earplug from being pushed too far inside of your ear. Made of PVC-free silicone that moulds to your ear’s shape and fitted with a hollow stem so you can hear better while swimming. Available in a choice of 3 colours.