ABS/PP/HDPEsafety helmet lightweight,comfortable wearing,headband adjustable ISO9001:2000 GB2811-2007 vivid color avaliable ABS/PP/HDPE construction safety helmetStandard:CN:GB2811-2007Model number:AY9805Color:yellow,red,blue,white etcFeature:"v" rib on top of the shell for reinforcing the impact resistance accessory jack is used for earmuff and other attachment lightweight,comfortable wearing, ...