Features: Adjustable size: This construction helmet can be quickly and easily resized with a knob on the back, improving the fit and comfort of the user, you can wear it lightly a whole day. Protect security: The safety hard hat for men has a short brim, a wide field of vision, is made of thickened ABS material, is sturdy and durable, and can play a good protective role in many aspects. Specifications: Color: yellow Material: ABS material Size: as shown in the picture Package includes: 5 x Safety helmet for construction hard hat Note: Due to different monitors and lighting effects, the actual color of the product may be slightly different from the color shown on the picture. Due to manual measurement, please allow slight size error.