The Set of 6 Silicone Stackable Rings greatly contributes to the motor development as well as the hand-eye coordination of infant. This first exploration for babies will help them discover the world around them, and it is through their senses that they will learn about shapes, colors and textures. This toy is safe and comfortable for the baby, who can put them in their mouth without danger. DIMENSIONS * Length: 3" (7.8 cm) * Width: 3" (7.8 cm) * Height: 4.7" (12 cm) FEATURES * Suitable for ages 6+ months * ASTM / SOR / CE Certified. This product meets all current standards for chemical components and safety in objects intended for child use * BPA Free ASSEMBLY & CARE Please remove the item from its packaging and dispose of all plastic attachments before using.