Our T-bolt clamp is made of heavy duty 301 stainless steel and galvanized nut with rounded band edge to protect soft hose material from cutting. Stainless steel T-bolt clamp band is 0.6mm thick and 19mm wide with rounded edge, will not damage hose or pipe. Clamp effective range: 45mm-105mm (1.75"-3.75"). Superior welded construction, pontoon pad. Note: If you use this T-bolt hose clamp for industrial and hose or pipe, please measure its outer diameter before purchase.Color: Baked blue Clamp range: 45mm-105mm or 1.75"-3.75" Material: 301 stainless steel Band thickness: 0.6mm Band width: 18mm Size: 1.75''= 45-53mm 2''=53-61mm 2.25''=59-67mm 2.5''=65-73mm 2.75''=72-80mm 3''=78-86mm 3.25''=84-92mm 3.5''=90-98mm 3.75"=97-105mm