The small size (4.5" diameter) minimizes 'waste' and the soft MircoFiber material is 'car finish friendly'.
This applicator is reliable and cost effective. Rinse and re-use your applicator over and over again. They are easy to wash using your favorite detergent. Toss them right into the washing machine for easy care. Just be sure to wash them separately, to keep them lint free. As with all microfiber products, never expose them to fabric softener. Fabric softener will reduce their static properties and cause the microfiber to clean/spread less effectively. They can be line dried or machine dried on low setting, again, separately from other laundry.
For other MicroFiber products, see this link.