Set of large screws and nuts, with the three basic geometric shapes: circle, square and triangle. They promote manual dexterity and visual-motor coordination through the action of screwing and unscrewing. Durable and very resistant, they are made of eco-friendly materials that reduce environmental impact. This set of large screws and nuts promotes fine motor skills, manual dexterity and hand-eye coordination. Strengthens shape, color and pattern recognition skills. 28 piece set includes: 12 Nuts, 12 Bolts, 4 Activity Cards. Suitable for children ages 2 - 5 years. With 4 different colors and 3 different geometric shapes (square, circle and triangle), children can match the nuts and bolts by color and shape. The colorful cards and bolts have matching shapes to explore shapes during this activity. The pieces go together well and are easy for small hands to use. Durable and highly resistant, they are made of eco-friendly materials to reduce their environmental impact. Made in Spain.