Vented holes are also designed on this model of safety helmet for optimized airflow. The outer shell material can be chosen from HDPE or ABS. It adopts 6 points suspension,materialis available from plastic and textile. Ratchet can be chosen from pin lock or wheel type. Ideal design for adapting additional components like earmuffs or goggle.Detailed Description Shell Material: ABS/HDPE Function: Head Protection Size: 28.5 X 22 X 14.5 CM Applicatoin: Construction, Industry, Mining, Gardening, Agriculture Adjust Manner: Pin Lock/Ratchet (53cm-64cm) Harness: 6 points webbing suspension Color: Yellow, Red, White, Black, Blue etc. (Customized) Useful Life: 3 years
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