Extra strong stainless steel T-bolt clamps for resisting rust and heat.Inside diameter of clampSold each.Sizes available. ( pick size in drop down menu)DIAMETER:1.50 - 1.64",1.63 - 1.88",1.75 - 2.00",1.94 - 2.18",2.13 - 2.37",2.31 - 2.56",2.56 - 2...