Casper counter retractors Complete with 5 blade Blade for Caspar Cervical Retractor, 45 x 23 mm Blade for Caspar Cervical Retractor, 50 x 23 mm Blade for Caspar Cervical Retractor, 55 x 23 mm Blade for Caspar Cervical Retractor, 60 x 23 mm Blade for Caspar Cervical Retractor, 65 x 23 mm