Simple and bright; push and pop them, poke and grab them; promote fine motor skills. Fidget sensory toys can help relieve emotions when babies change diapers, ride in a car or travel. This is a fun way to keep your brain focused and busy. BPA free; bubbles are made of 100% food grade silicone. The smooth round surface has no burrs, which can safely care for the baby's delicate skin. It is very suitable for portable games. There is a hole on the edge of this pit toy, which can be connected to a stroller or car seat.