Cheap Military Hair Brush Discount Review Shop Military Hair Brush Feature Natural bristle, silver plated engravable back. Military Hair Brush Overview This pocket sized military brush features a light colored natural bristle, easy on the hair and not damaging. Brush is great for on the go use. With a silver plated engravable back, you could also give it as a more meaningful gift. Approximately 5.5"L x 3"W Natural bristle travel sized brush Engravable silver plated back, makes a great gift Recommended cleaning in warm, soapy water.