Sand Blasting Helmet ABS Materi Cloak Style Painting Safety Air Tube Hood The adjustable telescopic suspension, suitable for different size of the head By broadening the length of the ventilation radian of the helmet to slow down the inlet speed. The Helmet diaphragm adopted double PVC scratch-resistant ultra-thin lens. That could reduce the change of the lens, reduce the cost and enhances the service life of the lens Except the removable frame, the whole Helmet is made by ABS material injection molding at a time. T