Mitee-Bite 37250 Concentric OD Clamp Caps; For Use With: OD Model 2 Clamp (PN 37200) ; Inside Diameter (Decimal Inch): 1.9900 ; Inside Diameter (mm): 50.5460 ; Outside Diameter (mm): 88.9000 ; Outside Diameter (Inch): 3.5000 ; Material: 6061 Aluminum