When your child comes home from school and their shirt is wet and therefore dirty; when all the pens and pencils have bite marks on them then you need a chew pendant.  The robot chew has been designed to be more robust in shape for the older child with mature teeth or for the more aggressive biter.
Due to vast range of needs and the diversity of the spectrum these products may not be suitable for all children. Please use your own discretion and use under adult supervision at all times. These jewellery pieces are not indestructible and therefore will need to be monitored and replaced if damaged. The timeframe in which this occurs will be faster with more aggressive chewers. Adult supervision is advised.