The SILICONE Swimming Earplugs are made from silica gel, which means they’re super-soft and comfortable, so you can wear these nice pieces for hours on end. They’re ultra-versatile, too. In addition to wearing them while swimming, you can wear them while sleeping, studying or travelling, as they’re very effective at noise reduction. They’re also waterproof. Best of all, you don’t just get one pair – you get five! The ear plugs measure 30mm in height and 15mm in width (at their widest point). You’d best be quick! See more products online.