The Mega Bloks Fisher-Price Toy Blocks Pink Big Building Bag with Storage contains 80 interlocking blocks in the colors of pink. Designed for children aged 1 years and up, this set is compatible with other popular brands like PLUS PLUS and LEGO. Made of plastic, the blocks come in a storage bag for easy organization and convenience. With a variety of themes including Cars, Construction, Architecture, and Exploration, this Mega Bloks First Builders set is perfect for young builders looking to engage in imaginative play and creative building experiences.