A trimmer is a grooming tool designed to cut hair, beard, or body hair with precision. It typically features adjustable length settings, allowing users to achieve their desired hair length. Trimmers are often used for maintaining facial hair styles, such as beards and mustaches, as well as for body grooming. Most trimmers are powered by electricity or batteries, making them convenient for home use. They come with various attachments, such as combs and blades, to cater to different grooming needs. Regular use of a trimmer can help maintain a neat appearance and promote personal hygiene.