Suction cup has been fixed and will not be opened by the babies.they're t more than spinner toys.The suction cup can be adsorbed on any smooth surfaces. It becomes fun bath toys in second when the water rushes to the leaves, it will keep spinning, baby will enjoy every bathtime! Dining table, Bathtub, Car window, Refrigerator,Dishwasher.Whether indoor or outside, spinner toys team will always share happy moment with baby.Baby spinner toys will make sounds when they rotating. Shake the rattle to exercise baby's perception, develops the baby's hearing and promote brain development.When spinner toys spins and rattles,it can relieve baby's uneasy mood, very suitable as a gift, very nice package, with so much function. Suitable for all kind gifts,Christmas gifts,New Year gifts, etc.Please don't miss any chance to surprise your babies!