A top-tier supplier on Made-in-China.com should offer extensive customization. This includes base size matching (template-based), a wide range of hair density percentages (from 60% extra light to 120% medium-heavy), and base color matching (e.g., transparent, light flesh, or dark brown) to suit different ethnicities. Furthermore, confirm if they can provide scalloped front edges or 'bleached knots' services, which are critical for achieving a seamless, natural-looking front hairline for male clients.