Button with head mushroom type EL-2211T 1NO+1NC IP65 red

A steel small button IP65 refers to a compact button or switch with specific design features and a specific level of protection against dust and water, as indicated by its IP65 rating. The button is described as small, which suggests that it is compact in size. Small buttons are commonly used in situations where space is limited or where a more discreet user interface is desired.