Luminescence: There are two electrode contacts at the bottom of the product. When using skin or water as a conductor, the internal light-emitting module will flicker. It glows when it gets into the water. If you don't put it in the water, it will light up even if you touch the bottom 2 contacts with your hand.^ Safe Materials: Made of plastic material, electronic components, healthy and safe. Your little child is safe.^ Cute: The rubber duck is cute and colorful, which can attract children's attention. These funny ducks will attract little babies and fall in love with these toys.^ Bathing Fun: When the baby is bathing, the duckling will float on the water and be bright and full of fun. Children love to play with them in the bath. Bring a great bath time with your little ones.^ Educational Toys: They are ideal for developing hand-eye coordination, fine finger skills, color recognition and cognitive processes, suitable for baby shower toys, birthday gifts, party favors.^