Using these PipSquigz Loops is super easy. Your baby can hold them in their little hands, feel the different textures, and chew on them to soothe sore gums. To make the rattling sound, just flip and spin the plastic rings. You can also press the suction cups on smooth surfaces like the table or high - chair tray for stationary play. When you pull the suction cups off, you'll hear a fun POP sound. As for maintenance, you can wash these toys with mild soap and warm water. Make sure to dry them thoroughly. Always keep an eye on your baby while they're playing with these toys to ensure safety. And remember, don't let your baby play with the toy near sharp objects that could damage the silicone.