Most are made from ABS or other plastics; many models use a glass mirror, and a few listings note recycled ABS for the brush body.
Product descriptions commonly claim they’re suitable for all hair types — including thick, thin, curly, straight, dry or wet — and often list use for extensions and wigs.
They’re marketed as compact, travel-friendly items that can slip into a makeup bag, purse, or pocket — many listings label them mini/travel size.
Common extras include a built-in mirror (sometimes double-sided), small plastic balls on comb teeth to reduce tangling, and a rubber or cushioned pad for a scalp-massaging effect.
Available details indicate these items do not use batteries. Specific cleaning or care instructions are often not provided in product details.
Most options include a built-in mirror; some compact models are double-sided, and certain listings describe the mirror as high-definition glass.