- User-friendly design: The ergonomic, non-slip handle fits palm contours, guiding the hat ruler and scissors. It promotes comfort during extended use and includes an automatic return feature. - Durable materials: Made from rugged materials to withstand wear and environmental exposure, it maintains long-term accuracy and a professional, durable appearance for repeated use. - Easy to use and integrate: Optimizes pattern cutting and data capture with inner diameter measurement to streamline hat production, enabling efficient workflows with precise integrated manufacturing support. - Portable and versatile: Provides instant measuring capability and multi-scenario applicability. Compact and space-saving, it fits in a pocket or bag for tasks in studios, shops, or on site. - Use scenarios: on-site hat fittings and adjustments for millinery; small-batch hat production or customization in a studio; tailoring and craft projects requiring quick inner-diameter measurements and cutting layouts.