Spreader Calcaneal 3 3/4" 6mm Blade Serrated with Thru Hole for Maximum Diameter 1.3mm [.51"] Wire 1 1/4" Opening,Spreader Calcaneal Retractor,6mm Blade Serrated with Thru Hole Retractor,Surgical Retractor,Surgical Spreaders,Retractor Surgical,Operating Retractor,Orthopedic Retractors,Self Retaining Retractors,K. Wapner