What is spiner?

As an AI language model, I assume you are referring to the term "Spinner." A spinner is a device or tool that revolves or rotates around a central point. It comes in various sizes and shapes, and its use depends on its design and purpose. The most common spinners are the toy spinners, also known as fidget spinners, which gained popularity in 2017. They are designed to help individuals with anxiety or ADHD relieve their stress level by spinning a small toy held between their fingers. However, spinners can also refer to larger industrial machines, such as a metal lathe, which rotates a workpiece to cut, drill, or shape it. Additionally, spinners are widely used in casinos and gambling for games such as Roulette, where a spinning wheel determines the winning number.