Material: Plastic & Polyester Size: 15.92X1.49X0.59in Package: 4Pack Made of plastic and polyester material, lightweight and durable Convenient snap design for easy installation on most hard hats on the market, easy to quick lock/unlock Elastic chin strap with chin cup for a comfortable fit, easy to adjust for your need Hat chin strap can be to replace the broken and damaged helmet strap, comfortable to wear, save your money Package Contains: 4 Pack helmet chin strap. Size: 15.92X1.49X0.59in