Thumb sucking is a common habit developed by children and begins as early as in utero. However. it becomes problematic when a child continues to suck their thumb past the age of 4 years. when their secondary dentition is developing and preparing to erupt. https://www.roneverhart.com/Open-Box-Apple-Watch-Series-6-GPS-Cellular-40mm-Space-Gray-Aluminum-w-Black-Sport-Band/