Product Description Specifications Muddy Puddles ®ECO flouride free waterproof coating 9-10 Years: 9-10 Years 7-8 Years: 7-8 Years 5-6 Years: 5-6 Years 3-4 Years: 3-4 Years 4-5 Years: 3-4 Years 18-24 Months: 1-2 Years 2-3 Years: 1-2 Years 11-12 Years: 11-12 Years