BRIO Builder STEM Learning Toy | Creative Construction Engineering Set | Fun Educational Building Set for Boys and Girls Ages 4 5 6 7 8 9 10 Years | Best Toy Gift for Kids | 135 Pieces BRIO Builder construction sets are toys with a strong emphasis on STEM LEARNING to help children build a solid foundation in Science, Technology, Engineering and Math. Recommended by teachers! Includes 135 x Brio builder pieces including nuts, bolts, blocks, a screwdriver, a hammer, a wrench and pliers Promotes open ended play! Build anything you can imagine. Safe to play with and easy to clean and store Suitable for ages 3+