What implement allows for various lengths and smooth mobility?

The implement that allows for various lengths and smooth mobility is electric clippers. Electric clippers are designed to make cutting hair quick and efficient while providing a range of attachment guards that can be used to achieve different lengths. This versatility is key in many hairstyling techniques, allowing for precise blending and fading. Moreover, the ease of use and steady motion provided by electric clippers contribute to a smooth cutting experience, making them ideal for various styles and client preferences.

While scissors and thinning shears are also important tools in hair styling, they typically require more skill and precision for different lengths and layering techniques. Razors are often used for texturizing and softening ends rather than for managing overall hair length. Thus, electric clippers are particularly suited for tasks involving varied lengths combined with the need for mobility and efficient operation.