Fruit infuser basket for Ion8 leak proof water bottles. Insert cut fruit or berries to flavour and ionize your water. Easy open screw cap for filling and emptying. Simply slides into the top of your existing water bottle. This smaller size fruit infuser basket fits 350ml(12oz), 500ml(18oz) and 550ml(20oz), whilst the smaller sized basket available seperately fits 750ml(24oz) and 1000ml(32 oz) drinking bottles. Don't buy a seperate fruit infuser bottle - simply extend the functionality of your existing Ion8 water bottle.