Leticia's Corner Set of Wooden Pincer Grasp and Egg Cup Puzzles, Pincer Puzzles, First Puzzles, Montessori Toys for 6 Months+, Fine Motor Skills KATA [Material]:Crafted from carbon steel and What s Included Comes [Material]:Crafted from carbon steel and equipped with TCT (Tungsten Carbide Tipped) teeth Carefully inspected for quality assurance picking up the peg and the egg and putting them back to their cups speaks to young children's need for order DEVELOP FINE AND GROSS MOTOR SKILLS classic Montessori toys that helps your child work on concentration and coordination helps with both fine and gross motor skills at the same time help children to develop finger strength and hand eye coordination good for brain development