Quick Hitch HIGH TENSILE TOWING EYES Part No. Description Material B2473 Towing Eye 2" (50.8mm) EN16 - 4037 IMPORTANT WELDING INFO FOR EN16 MATERIAL Welding surfaces require PRE-HEATING Refer to your welding supplier for correct welding procedure. Part No. Description "A" B2471 Swivel Towing Eye 39mm (1 1/2") B2472 Swivel Towing Eye 52mm (2")