- CAT 83416 children's construction set with functional crane and 2 CAT Little Machines vehicles - Includes 340 g of reusable concrete-like molding compound, 4 molds, and traffic accessories - The sensory compound mimics fresh cement, is soft, moldable, and mess-free - Stimulates fine motor skills, creativity, and spatial thinking in children from 3 years old - Durable and resistant materials, suitable for indoor and outdoor play - Tray with lid for easy storage and organization of pieces - Encourages the development of imagination, coordination, and early engineering skills - Ideal STEM educational set for boys and girls who love construction - Original and safe gift for birthdays, Christmas, or special occasions - Reusable and easy-to-clean components for prolonged and safe play