Help your baby get quality naps on-the-go: Use from birth as a bassinet blackout cover and a stroller shade extender to provide shade for baby outside Fits all single strollers & bassinets: One of those essential stroller accessories you didn’t know you needed until you use it! It's the only baby stroller sun cover approved by the Melanoma International Foundation. air-permeable mesh stroller sun cover blocks maximum UV (99% of the sun's rays - UPF50+)