Suction toys can be attached to smooth surfaces or to each other. They are made of food-grade silicone, BPA-free, latex-free, soft enough, and doesn't leave any residue or marks on surfaces.Children can use their imagination to attach these toys to each other to form a variety of shapes to exercise thinking skills and hand-eye coordination. Kids can pack these suction toys in eggshell storage boxes and take them along.These versatile toys can be used as bath toys to help children enjoy the bath, as daily therapy toys for people with autism, or as stress-relieving toys for adults.These suction cup toys are easy to clean, just rinse them with water. Children can share these toys with friends, develop their imagination and fine motor skills in play, and have fun together.