Sensory teethers support sensory development and help babies practice fine and gross motor skills. Many also encourage tactile exploration and clutching/grasping, and some models include sound or music features that promote early auditory interaction.
Sensory teethers are made from a variety of materials, including thermoplastic elastomers (and ABS/plastic blends), natural rubber, silicone (often marketed as medical-grade silicone), and polyester.
Listings commonly start as early as newborn/0 months and frequently specify 3 months and up; some teethers are rated for use through about 36 months.
Grip-friendly designs include handles and curved handles, cross-bar grips, continuous loops or tube shapes, and extended legs/necks. Teethers are generally kept small and lightweight to make clutching and reaching molars easier.