Inspire young builders to build in any direction or angle with Constructive Playthings Mini Flexi-Builders. The Mini Flexi-Builders help teach spatial thinking and imaginative 3D building while strengthening fine motor skills. It promotes perceptual and fine motor development while encouraging cooperative group play. Add the Mini Flexi-Builders to your group setting and children will engage in STEM building concepts such as problem solving, balance and engineering design. Each durable plastic star has 6 slots for building and balancing in all directions. Our Mini Flexi-Builders measure 1 5/8 diam. and come in a variety of bright primary colors red, blue, green and yellow. Our 77 piece set is a great item to keep little learners engaged in active learning while having fun. Mini Flexi-Builders are an ideal addition to classrooms, preschools, and the home environment. They can be cleaned with a mild soap and water mixture and a soft, damp cloth. This product is recommended for children ages 3 years .