Strong Man's 48in x 150ft Fall Protection Debris Net is constructed of knitted polyethylene with a reinforced border, 1/4in hole openings, a lightweight design that stays flexible in the winter, and is fire retardant. Meets NFPA® 701 Method II, the Boston Fire Marshall Test BFD 1X-1, OSHA regulations, NYC Law 61 and all applicable OSHA standards.