• Plastic
• Chin protective strap--the hard hat chin straps are stable and firm, not easy to fall off, suitable for construction worker,helmet chain strap
• Wear-resistant chin strap--the chin strap is simple and delicate, excellent and reliable, carefully crafted, not easy to break, universal and useful, for worker use,helmet supplies
• Chin protection strap--the hard hat chin strap is lightweight and reliable, portable and practical, suitable for safety and security use,adjustable helmet chin strap
• Chin strap--simple structure design, firm and stable, sturdy and high toughness, not easy to break,universal helmet chin strap
• Helmet supply--flexible and skin-friendly, comfortable for wearing, can be used for safety construction site,protection chin strap