Wahl 5640100 Micro Finish AAA Pen Trimmer Tri heads let you choose a detail, reciprocating or rotary head for your solution to removing unwanted hair. Professional quality personal trimmer with hygenic steel rotart blades that rinse clean under water. Removes unwanted hair without nicking or pulling. Detailing head idela for bikini areas, sideburns, necklines, goatees, and mustaches. Eyebrow attachment. Brushed red anodized aluminum finish with cap. AAA battery included.