Designed specifically for tie-back use the BackBiter features include: SoftStop shock absorber pack locking Miller 5K snap hook(s) locking snap hook (3/4 gate opening) and heavy-duty Cordura nylon webbing. BackBiter is available in single or twin-leg configurations. Twin-leg models can be used for 100% tie-off requirements. Standard 6' length. Meets applicable OSHA ANSI and CSA standards.