English: This symbol is put on materials that protect other things from ESD. Examples of this is done in order to keep you grounded and keep your electrical potential grounded in the process. Other examples include certain floor mats and chairs. Once again, the triangle warns people to take caution, however, the hand with no slash through it informs others that it is okay to touch. The semi-circle surrounding the picture means protection, in this case it notifies others that the material they are about to touch is ESD protective.