SCOPE OF DELIVERY - You will receive 4 different colored pacifier chains, 18 cm long, blue, gray, pink, and light gray, plus 4 silicone button rings, a sufficient quantity.SAFE - The pacifier chain for boys is made of cotton, odorless, soft and skin-friendly, pleasant to the touch, and the clip is made of stainless steel, with smooth and burr-free edges that will not damage the baby's clothing.VISUAL DEVELOPMENT - The pacifier chain for girls attracts the baby's attention and promotes visual development, and the different colors encourage color recognition.HYGIENE AND ANTI-LOSS - The silicone pacifier chain is attached to the pacifier at one end and clipped to clothing at the other. This prevents the pacifier from getting lost or falling on the floor.