PanaVise 865W CCTV Corner/Pipe Base Perfect for external corners of wall joints or strapped to pipes at least 1.25" (31.8mm) in diameter (straps not included). Face is 0.75" (19.1mm) wide; height is 2.875" (73.0mm) Corner Clamp slots accept max. strap width: 0.75" (19mm); holes dia. 0.2" (5mm) 1/4-20 mounting stud Perfect for external corners of wall joints or strapped to pipes at least 1.25-Inch (31.8mm) in diameter (straps not included). Face is 0.75-Inch (19.1mm) wide; height is 2.875-Inch (73.0mm) Corner Clamp slots accept max. strap width: 0.75-Inch (19mm); holes dia. 0.2-Inch (5mm) 0.25-Inch 20 mounting stud